diff --git a/.fvmrc b/.fvmrc
index afd2043..efcdf3c 100644
--- a/.fvmrc
+++ b/.fvmrc
@@ -1,3 +1,3 @@
 {
-  "flutter": "3.44.2"
+  "flutter": "3.44.3"
 }
\ No newline at end of file
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index f6fd92e..98bf175 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -5,4 +5,4 @@ updates:
   - package-ecosystem: "pub"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
diff --git a/.github/versions.env b/.github/versions.env
index eb39127..3334f39 100644
--- a/.github/versions.env
+++ b/.github/versions.env
@@ -1,2 +1,2 @@
-FLUTTER_VERSION=3.44.1
+FLUTTER_VERSION=3.44.3
 CMAKE_VERSION=3.22.1
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
index a88cf85..a9df37e 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,3 @@
 {
-  "dart.flutterSdkPath": ".fvm/versions/3.44.2"
+  "dart.flutterSdkPath": ".fvm/versions/3.44.3"
 }
\ No newline at end of file
diff --git a/android/Gemfile.lock b/android/Gemfile.lock
index 331f838..7e98971 100644
--- a/android/Gemfile.lock
+++ b/android/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     artifactory (3.0.17)
     atomos (0.1.3)
     aws-eventstream (1.4.0)
-    aws-partitions (1.1261.0)
+    aws-partitions (1.1262.0)
     aws-sdk-core (3.252.0)
       aws-eventstream (~> 1, >= 1.3.0)
       aws-partitions (~> 1, >= 1.992.0)
@@ -43,7 +43,7 @@ GEM
     dotenv (2.8.1)
     emoji_regex (3.2.3)
     excon (0.112.0)
-    faraday (1.10.5)
+    faraday (1.10.6)
       faraday-em_http (~> 1.0)
       faraday-em_synchrony (~> 1.0)
       faraday-excon (~> 1.1)
@@ -125,7 +125,7 @@ GEM
       xcpretty-travis-formatter (>= 0.0.3, < 2.0.0)
     fastlane-sirp (1.1.0)
     gh_inspector (1.1.3)
-    google-apis-androidpublisher_v3 (0.103.0)
+    google-apis-androidpublisher_v3 (0.104.0)
       google-apis-core (>= 0.15.0, < 2.a)
     google-apis-core (0.18.0)
       addressable (~> 2.5, >= 2.5.1)
@@ -172,7 +172,7 @@ GEM
     httpclient (2.9.0)
       mutex_m
     jmespath (1.6.2)
-    json (2.19.9)
+    json (2.20.0)
     jwt (3.2.0)
       base64
     logger (1.7.0)
@@ -245,7 +245,7 @@ CHECKSUMS
   artifactory (3.0.17) sha256=3023d5c964c31674090d655a516f38ca75665c15084140c08b7f2841131af263
   atomos (0.1.3) sha256=7d43b22f2454a36bace5532d30785b06de3711399cb1c6bf932573eda536789f
   aws-eventstream (1.4.0) sha256=116bf85c436200d1060811e6f5d2d40c88f65448f2125bc77ffce5121e6e183b
-  aws-partitions (1.1261.0) sha256=89eda89781c1ea4e1be2a2dcdc72318c62c6171a01cdaeaa0cbecf3cea6f9fdc
+  aws-partitions (1.1262.0) sha256=77e9b1dd3e8f616673f2959d2fc4e762065f83a43140e2cb82274525afbaccf7
   aws-sdk-core (3.252.0) sha256=09c042cbfc2acf2239441cc9b982ebab2a999bed2ef6bdc51849e7b3d6e48a1c
   aws-sdk-kms (1.129.0) sha256=363f548df321f4a4fcfd05523384e591060b400f8e65133ed7ef0793155a3343
   aws-sdk-s3 (1.226.0) sha256=e599f431e006ec9b92c61ee0f14d3f658a1f6c8a1d623d2160be927ac958e2bf
@@ -266,7 +266,7 @@ CHECKSUMS
   dotenv (2.8.1) sha256=c5944793349ae03c432e1780a2ca929d60b88c7d14d52d630db0508c3a8a17d8
   emoji_regex (3.2.3) sha256=ecd8be856b7691406c6bf3bb3a5e55d6ed683ffab98b4aa531bb90e1ddcc564b
   excon (0.112.0) sha256=daf9ac3a4c2fc9aa48383a33da77ecb44fa395111e973084d5c52f6f214ae0f0
-  faraday (1.10.5) sha256=b144f1d2b045652fa820b5f532723e1643cc28b93dae911d784e5c5f88e8f6ed
+  faraday (1.10.6) sha256=7ff4802a6b312876a2241b3e641ce0d5045e168dd871b422c35b505e5261ad4d
   faraday-cookie_jar (0.0.8) sha256=0140605823f8cc63c7028fccee486aaed8e54835c360cffc1f7c8c07c4299dbb
   faraday-em_http (1.0.0) sha256=7a3d4c7079789121054f57e08cd4ef7e40ad1549b63101f38c7093a9d6c59689
   faraday-em_synchrony (1.0.1) sha256=bf3ce45dcf543088d319ab051f80985ea6d294930635b7a0b966563179f81750
@@ -283,7 +283,7 @@ CHECKSUMS
   fastlane (2.236.1) sha256=fb89e618e0f38636e487743622cf710ad722723f5d33a63f19e367f84d3770bc
   fastlane-sirp (1.1.0) sha256=10bc94f9682efd8e1badfb31452a76dd8981f1f3a33717c765fde6d75b54d847
   gh_inspector (1.1.3) sha256=04cca7171b87164e053aa43147971d3b7f500fcb58177698886b48a9fc4a1939
-  google-apis-androidpublisher_v3 (0.103.0) sha256=8075b9da398b201493ad1cd4074ff1a76ae67abf7eaad4242c0c75d22d61b559
+  google-apis-androidpublisher_v3 (0.104.0) sha256=3bf7f0dee23ae71e070e279848374834853204e304831cf6aa76fa435a4d6eff
   google-apis-core (0.18.0) sha256=96b057816feeeab448139ed5b5c78eab7fc2a9d8958f0fbc8217dedffad054ee
   google-apis-iamcredentials_v1 (0.28.0) sha256=0a92ffe6cc39c569554af2a77a25dfc61519ed8bbb64ab04cffdd352dc5ef106
   google-apis-playcustomapp_v1 (0.18.0) sha256=44b277b9dee4a59ac5e9d98be1485edc5e382d2f9d73c79ae8908a455786a254
@@ -298,7 +298,7 @@ CHECKSUMS
   http-cookie (1.0.8) sha256=b14fe0445cf24bf9ae098633e9b8d42e4c07c3c1f700672b09fbfe32ffd41aa6
   httpclient (2.9.0) sha256=4b645958e494b2f86c2f8a2f304c959baa273a310e77a2931ddb986d83e498c8
   jmespath (1.6.2) sha256=238d774a58723d6c090494c8879b5e9918c19485f7e840f2c1c7532cf84ebcb1
-  json (2.19.9) sha256=9b9025b7cdddafa38d316eca0b2358488e42d417045c1b90d216a9fefe46b79a
+  json (2.20.0) sha256=9362bc6e55a952b056abf9167cf053358181c904cb70cd6eee0808ea830fc32b
   jwt (3.2.0) sha256=5419b1fe37b1da0982bd07051f573a8b8789ab724c2aa7e785e4784a3ed217d7
   logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
   mini_magick (4.13.2) sha256=71d6258e0e8a3d04a9a0a09784d5d857b403a198a51dd4f882510435eb95ddd9
diff --git a/ios/Gemfile.lock b/ios/Gemfile.lock
index 331f838..7e98971 100644
--- a/ios/Gemfile.lock
+++ b/ios/Gemfile.lock
@@ -8,7 +8,7 @@ GEM
     artifactory (3.0.17)
     atomos (0.1.3)
     aws-eventstream (1.4.0)
-    aws-partitions (1.1261.0)
+    aws-partitions (1.1262.0)
     aws-sdk-core (3.252.0)
       aws-eventstream (~> 1, >= 1.3.0)
       aws-partitions (~> 1, >= 1.992.0)
@@ -43,7 +43,7 @@ GEM
     dotenv (2.8.1)
     emoji_regex (3.2.3)
     excon (0.112.0)
-    faraday (1.10.5)
+    faraday (1.10.6)
       faraday-em_http (~> 1.0)
       faraday-em_synchrony (~> 1.0)
       faraday-excon (~> 1.1)
@@ -125,7 +125,7 @@ GEM
       xcpretty-travis-formatter (>= 0.0.3, < 2.0.0)
     fastlane-sirp (1.1.0)
     gh_inspector (1.1.3)
-    google-apis-androidpublisher_v3 (0.103.0)
+    google-apis-androidpublisher_v3 (0.104.0)
       google-apis-core (>= 0.15.0, < 2.a)
     google-apis-core (0.18.0)
       addressable (~> 2.5, >= 2.5.1)
@@ -172,7 +172,7 @@ GEM
     httpclient (2.9.0)
       mutex_m
     jmespath (1.6.2)
-    json (2.19.9)
+    json (2.20.0)
     jwt (3.2.0)
       base64
     logger (1.7.0)
@@ -245,7 +245,7 @@ CHECKSUMS
   artifactory (3.0.17) sha256=3023d5c964c31674090d655a516f38ca75665c15084140c08b7f2841131af263
   atomos (0.1.3) sha256=7d43b22f2454a36bace5532d30785b06de3711399cb1c6bf932573eda536789f
   aws-eventstream (1.4.0) sha256=116bf85c436200d1060811e6f5d2d40c88f65448f2125bc77ffce5121e6e183b
-  aws-partitions (1.1261.0) sha256=89eda89781c1ea4e1be2a2dcdc72318c62c6171a01cdaeaa0cbecf3cea6f9fdc
+  aws-partitions (1.1262.0) sha256=77e9b1dd3e8f616673f2959d2fc4e762065f83a43140e2cb82274525afbaccf7
   aws-sdk-core (3.252.0) sha256=09c042cbfc2acf2239441cc9b982ebab2a999bed2ef6bdc51849e7b3d6e48a1c
   aws-sdk-kms (1.129.0) sha256=363f548df321f4a4fcfd05523384e591060b400f8e65133ed7ef0793155a3343
   aws-sdk-s3 (1.226.0) sha256=e599f431e006ec9b92c61ee0f14d3f658a1f6c8a1d623d2160be927ac958e2bf
@@ -266,7 +266,7 @@ CHECKSUMS
   dotenv (2.8.1) sha256=c5944793349ae03c432e1780a2ca929d60b88c7d14d52d630db0508c3a8a17d8
   emoji_regex (3.2.3) sha256=ecd8be856b7691406c6bf3bb3a5e55d6ed683ffab98b4aa531bb90e1ddcc564b
   excon (0.112.0) sha256=daf9ac3a4c2fc9aa48383a33da77ecb44fa395111e973084d5c52f6f214ae0f0
-  faraday (1.10.5) sha256=b144f1d2b045652fa820b5f532723e1643cc28b93dae911d784e5c5f88e8f6ed
+  faraday (1.10.6) sha256=7ff4802a6b312876a2241b3e641ce0d5045e168dd871b422c35b505e5261ad4d
   faraday-cookie_jar (0.0.8) sha256=0140605823f8cc63c7028fccee486aaed8e54835c360cffc1f7c8c07c4299dbb
   faraday-em_http (1.0.0) sha256=7a3d4c7079789121054f57e08cd4ef7e40ad1549b63101f38c7093a9d6c59689
   faraday-em_synchrony (1.0.1) sha256=bf3ce45dcf543088d319ab051f80985ea6d294930635b7a0b966563179f81750
@@ -283,7 +283,7 @@ CHECKSUMS
   fastlane (2.236.1) sha256=fb89e618e0f38636e487743622cf710ad722723f5d33a63f19e367f84d3770bc
   fastlane-sirp (1.1.0) sha256=10bc94f9682efd8e1badfb31452a76dd8981f1f3a33717c765fde6d75b54d847
   gh_inspector (1.1.3) sha256=04cca7171b87164e053aa43147971d3b7f500fcb58177698886b48a9fc4a1939
-  google-apis-androidpublisher_v3 (0.103.0) sha256=8075b9da398b201493ad1cd4074ff1a76ae67abf7eaad4242c0c75d22d61b559
+  google-apis-androidpublisher_v3 (0.104.0) sha256=3bf7f0dee23ae71e070e279848374834853204e304831cf6aa76fa435a4d6eff
   google-apis-core (0.18.0) sha256=96b057816feeeab448139ed5b5c78eab7fc2a9d8958f0fbc8217dedffad054ee
   google-apis-iamcredentials_v1 (0.28.0) sha256=0a92ffe6cc39c569554af2a77a25dfc61519ed8bbb64ab04cffdd352dc5ef106
   google-apis-playcustomapp_v1 (0.18.0) sha256=44b277b9dee4a59ac5e9d98be1485edc5e382d2f9d73c79ae8908a455786a254
@@ -298,7 +298,7 @@ CHECKSUMS
   http-cookie (1.0.8) sha256=b14fe0445cf24bf9ae098633e9b8d42e4c07c3c1f700672b09fbfe32ffd41aa6
   httpclient (2.9.0) sha256=4b645958e494b2f86c2f8a2f304c959baa273a310e77a2931ddb986d83e498c8
   jmespath (1.6.2) sha256=238d774a58723d6c090494c8879b5e9918c19485f7e840f2c1c7532cf84ebcb1
-  json (2.19.9) sha256=9b9025b7cdddafa38d316eca0b2358488e42d417045c1b90d216a9fefe46b79a
+  json (2.20.0) sha256=9362bc6e55a952b056abf9167cf053358181c904cb70cd6eee0808ea830fc32b
   jwt (3.2.0) sha256=5419b1fe37b1da0982bd07051f573a8b8789ab724c2aa7e785e4784a3ed217d7
   logger (1.7.0) sha256=196edec7cc44b66cfb40f9755ce11b392f21f7967696af15d274dde7edff0203
   mini_magick (4.13.2) sha256=71d6258e0e8a3d04a9a0a09784d5d857b403a198a51dd4f882510435eb95ddd9
diff --git a/ios/ParenW/Info.plist b/ios/ParenW/Info.plist
index 36f8f25..1c9d3d3 100644
--- a/ios/ParenW/Info.plist
+++ b/ios/ParenW/Info.plist
@@ -3,9 +3,9 @@
 <plist version="1.0">
 <dict>
 	<key>CFBundleShortVersionString</key>
-	<string>1.11.5</string>
+	<string>1.11.6</string>
 	<key>CFBundleVersion</key>
-	<string>674</string>
+	<string>713</string>
 	<key>NSExtension</key>
 	<dict>
 		<key>NSExtensionPointIdentifier</key>
diff --git a/lib/components/bill_splitter_sheet.dart b/lib/components/bill_splitter_sheet.dart
new file mode 100644
index 0000000..76d6aaa
--- /dev/null
+++ b/lib/components/bill_splitter_sheet.dart
@@ -0,0 +1,715 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:intl/intl.dart';
+import 'package:paren/l10n/app_localizations_extension.dart';
+import 'package:paren/providers/extensions.dart';
+import 'package:paren/providers/paren.dart';
+
+// ---------------------------------------------------------------------------
+// Denomination data
+// ---------------------------------------------------------------------------
+
+/// A single coin or banknote denomination.
+class _Denomination {
+  final int valueMinorUnits; // in smallest currency unit (cents, kuruş, etc.)
+  final String label;
+  final bool isBill;
+
+  const _Denomination({
+    required this.valueMinorUnits,
+    required this.label,
+    required this.isBill,
+  });
+}
+
+/// Minor-unit scale per currency (i.e. how many minor units = 1 major unit).
+const _minorUnitScale = <String, int>{
+  'jpy': 1, // ¥ has no subunit
+  'usd': 100,
+  'eur': 100,
+  'try': 100,
+};
+
+/// Denominations for supported currencies, from largest to smallest.
+const _denominations = <String, List<_Denomination>>{
+  'jpy': [
+    _Denomination(valueMinorUnits: 10000, label: '¥10,000', isBill: true),
+    _Denomination(valueMinorUnits: 5000, label: '¥5,000', isBill: true),
+    _Denomination(valueMinorUnits: 1000, label: '¥1,000', isBill: true),
+    _Denomination(valueMinorUnits: 500, label: '¥500', isBill: false),
+    _Denomination(valueMinorUnits: 100, label: '¥100', isBill: false),
+    _Denomination(valueMinorUnits: 50, label: '¥50', isBill: false),
+    _Denomination(valueMinorUnits: 10, label: '¥10', isBill: false),
+    _Denomination(valueMinorUnits: 5, label: '¥5', isBill: false),
+    _Denomination(valueMinorUnits: 1, label: '¥1', isBill: false),
+  ],
+  'usd': [
+    _Denomination(valueMinorUnits: 10000, label: '\$100', isBill: true),
+    _Denomination(valueMinorUnits: 5000, label: '\$50', isBill: true),
+    _Denomination(valueMinorUnits: 2000, label: '\$20', isBill: true),
+    _Denomination(valueMinorUnits: 1000, label: '\$10', isBill: true),
+    _Denomination(valueMinorUnits: 500, label: '\$5', isBill: true),
+    _Denomination(valueMinorUnits: 100, label: '\$1', isBill: true),
+    _Denomination(valueMinorUnits: 25, label: '25¢', isBill: false),
+    _Denomination(valueMinorUnits: 10, label: '10¢', isBill: false),
+    _Denomination(valueMinorUnits: 5, label: '5¢', isBill: false),
+    _Denomination(valueMinorUnits: 1, label: '1¢', isBill: false),
+  ],
+  'eur': [
+    _Denomination(valueMinorUnits: 50000, label: '€500', isBill: true),
+    _Denomination(valueMinorUnits: 20000, label: '€200', isBill: true),
+    _Denomination(valueMinorUnits: 10000, label: '€100', isBill: true),
+    _Denomination(valueMinorUnits: 5000, label: '€50', isBill: true),
+    _Denomination(valueMinorUnits: 2000, label: '€20', isBill: true),
+    _Denomination(valueMinorUnits: 1000, label: '€10', isBill: true),
+    _Denomination(valueMinorUnits: 500, label: '€5', isBill: true),
+    _Denomination(valueMinorUnits: 200, label: '€2', isBill: false),
+    _Denomination(valueMinorUnits: 100, label: '€1', isBill: false),
+    _Denomination(valueMinorUnits: 50, label: '50¢', isBill: false),
+    _Denomination(valueMinorUnits: 20, label: '20¢', isBill: false),
+    _Denomination(valueMinorUnits: 10, label: '10¢', isBill: false),
+    _Denomination(valueMinorUnits: 5, label: '5¢', isBill: false),
+    _Denomination(valueMinorUnits: 2, label: '2¢', isBill: false),
+    _Denomination(valueMinorUnits: 1, label: '1¢', isBill: false),
+  ],
+  'try': [
+    _Denomination(valueMinorUnits: 20000, label: '₺200', isBill: true),
+    _Denomination(valueMinorUnits: 10000, label: '₺100', isBill: true),
+    _Denomination(valueMinorUnits: 5000, label: '₺50', isBill: true),
+    _Denomination(valueMinorUnits: 2000, label: '₺20', isBill: true),
+    _Denomination(valueMinorUnits: 1000, label: '₺10', isBill: true),
+    _Denomination(valueMinorUnits: 500, label: '₺5', isBill: true),
+    _Denomination(valueMinorUnits: 100, label: '₺1', isBill: false),
+    _Denomination(valueMinorUnits: 50, label: '50kr', isBill: false),
+    _Denomination(valueMinorUnits: 25, label: '25kr', isBill: false),
+    _Denomination(valueMinorUnits: 10, label: '10kr', isBill: false),
+    _Denomination(valueMinorUnits: 5, label: '5kr', isBill: false),
+    _Denomination(valueMinorUnits: 1, label: '1kr', isBill: false),
+  ],
+};
+
+bool hasDenominations(String currencyId) =>
+    _denominations.containsKey(currencyId.toLowerCase());
+
+/// Returns a greedy denomination breakdown for [amountMinor] (in minor units).
+List<({_Denomination denom, int count})> _breakdownFor(
+  String currencyId,
+  int amountMinor,
+) {
+  var denoms = _denominations[currencyId.toLowerCase()];
+  if (denoms == null || amountMinor <= 0) return [];
+
+  var result = <({_Denomination denom, int count})>[];
+  var remaining = amountMinor;
+  for (var d in denoms) {
+    if (remaining <= 0) break;
+    var count = remaining ~/ d.valueMinorUnits;
+    if (count > 0) {
+      result.add((denom: d, count: count));
+      remaining -= count * d.valueMinorUnits;
+    }
+  }
+  return result;
+}
+
+int _toMinor(double amount, String currencyId) {
+  var scale = _minorUnitScale[currencyId.toLowerCase()] ?? 100;
+  return (amount * scale).round();
+}
+
+// ---------------------------------------------------------------------------
+// Top-level sheet widget
+// ---------------------------------------------------------------------------
+
+class BillSplitterSheet extends StatefulWidget {
+  final double initialAmount;
+  final String fromCurrencyId;
+  final String toCurrencyId;
+
+  const BillSplitterSheet({
+    super.key,
+    required this.initialAmount,
+    required this.fromCurrencyId,
+    required this.toCurrencyId,
+  });
+
+  @override
+  State<BillSplitterSheet> createState() => _BillSplitterSheetState();
+}
+
+class _BillSplitterSheetState extends State<BillSplitterSheet>
+    with SingleTickerProviderStateMixin {
+  final Paren paren = Get.find();
+
+  late final TabController _tabController;
+  final _people = 2.obs;
+
+  // Wallet counts: denomination index → count
+  late final Map<int, RxInt> _walletCounts;
+
+  // The currency whose denominations are shown (fromCurrency when supported,
+  // otherwise toCurrency; falls back gracefully).
+  late String _denomCurrencyId;
+
+  @override
+  void initState() {
+    super.initState();
+
+    // Decide which currency to use for the cash breakdown.
+    // Prefer the "from" side; if not supported, try "to"; else fallback.
+    _denomCurrencyId = hasDenominations(widget.fromCurrencyId)
+        ? widget.fromCurrencyId
+        : widget.toCurrencyId;
+
+    var denomCount =
+        _denominations[_denomCurrencyId.toLowerCase()]?.length ?? 0;
+    _walletCounts = {for (var i = 0; i < denomCount; i++) i: 0.obs};
+
+    var hasCash =
+        hasDenominations(widget.fromCurrencyId) ||
+        hasDenominations(widget.toCurrencyId);
+    _tabController = TabController(length: hasCash ? 3 : 1, vsync: this);
+  }
+
+  @override
+  void dispose() {
+    _tabController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    var l10n = context.l10n;
+    var hasCash =
+        hasDenominations(widget.fromCurrencyId) ||
+        hasDenominations(widget.toCurrencyId);
+
+    return Material(
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
+      ),
+      child: SafeArea(
+        top: false,
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            // Header
+            Padding(
+              padding: const EdgeInsets.fromLTRB(20, 20, 20, 0),
+              child: Row(
+                children: [
+                  Icon(
+                    Icons.calculate_outlined,
+                    color: context.theme.colorScheme.primary,
+                  ),
+                  8.w,
+                  Text(
+                    l10n.splitBill,
+                    style: context.theme.textTheme.headlineSmall?.copyWith(
+                      fontWeight: FontWeight.bold,
+                    ),
+                  ),
+                  const Spacer(),
+                  IconButton(
+                    icon: const Icon(Icons.close),
+                    onPressed: () => Navigator.of(context).pop(),
+                  ),
+                ],
+              ),
+            ),
+            if (hasCash) ...[
+              TabBar(
+                controller: _tabController,
+                tabs: [
+                  Tab(
+                    icon: const Icon(Icons.group_outlined),
+                    text: l10n.splitBillTab,
+                  ),
+                  Tab(
+                    icon: const Icon(Icons.paid_outlined),
+                    text: l10n.denominationBreakdown,
+                  ),
+                  Tab(
+                    icon: const Icon(Icons.wallet_outlined),
+                    text: l10n.walletCheck,
+                  ),
+                ],
+              ),
+              ConstrainedBox(
+                constraints: BoxConstraints(
+                  maxHeight: MediaQuery.sizeOf(context).height * 0.55,
+                ),
+                child: TabBarView(
+                  controller: _tabController,
+                  children: [
+                    _SplitterTabView(
+                      amount: widget.initialAmount,
+                      fromCurrencyId: widget.fromCurrencyId,
+                      toCurrencyId: widget.toCurrencyId,
+                      people: _people,
+                    ),
+                    _BreakdownTabView(
+                      amount: widget.initialAmount,
+                      currencyId: _denomCurrencyId,
+                    ),
+                    _WalletTabView(
+                      requiredAmount: widget.initialAmount,
+                      currencyId: _denomCurrencyId,
+                      walletCounts: _walletCounts,
+                    ),
+                  ],
+                ),
+              ),
+            ] else ...[
+              ConstrainedBox(
+                constraints: BoxConstraints(
+                  maxHeight: MediaQuery.sizeOf(context).height * 0.5,
+                ),
+                child: _SplitterTabView(
+                  amount: widget.initialAmount,
+                  fromCurrencyId: widget.fromCurrencyId,
+                  toCurrencyId: widget.toCurrencyId,
+                  people: _people,
+                ),
+              ),
+            ],
+            const SizedBox(height: 16),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Tab 1 — Bill Splitter
+// ---------------------------------------------------------------------------
+
+class _SplitterTabView extends StatelessWidget {
+  final double amount;
+  final String fromCurrencyId;
+  final String toCurrencyId;
+  final RxInt people;
+
+  const _SplitterTabView({
+    required this.amount,
+    required this.fromCurrencyId,
+    required this.toCurrencyId,
+    required this.people,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    Paren paren = Get.find();
+    var l10n = context.l10n;
+
+    var fromFmt = NumberFormat.simpleCurrency(
+      name: fromCurrencyId.toUpperCase(),
+      locale: context.l10n.localeName,
+    );
+    var toFmt = NumberFormat.simpleCurrency(
+      name: toCurrencyId.toUpperCase(),
+      locale: context.l10n.localeName,
+    );
+
+    return SingleChildScrollView(
+      padding: const EdgeInsets.all(20),
+      child: Obx(() {
+        var n = people.value;
+        var perPersonFrom = n > 0 ? amount / n : 0.0;
+        var perPersonTo = paren.convertValue(
+          perPersonFrom,
+          fromId: fromCurrencyId,
+          toId: toCurrencyId,
+        );
+
+        return Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            // Total
+            _InfoRow(
+              label: l10n.total,
+              value:
+                  '${fromFmt.format(amount)} ≈ ${toFmt.format(paren.convertValue(amount, fromId: fromCurrencyId, toId: toCurrencyId))}',
+            ),
+            16.h,
+            // People stepper
+            Text(
+              l10n.numberOfPeople,
+              style: const TextStyle(fontWeight: FontWeight.bold),
+            ),
+            8.h,
+            Row(
+              children: [
+                _StepperButton(
+                  icon: Icons.remove,
+                  onPressed: n > 1 ? () => people.value-- : null,
+                ),
+                Expanded(
+                  child: Center(
+                    child: Text(
+                      '$n',
+                      style: context.theme.textTheme.headlineMedium?.copyWith(
+                        fontWeight: FontWeight.bold,
+                        color: context.theme.colorScheme.primary,
+                      ),
+                    ),
+                  ),
+                ),
+                _StepperButton(
+                  icon: Icons.add,
+                  onPressed: n < 20 ? () => people.value++ : null,
+                ),
+              ],
+            ),
+            20.h,
+            // Per-person result card
+            Container(
+              width: double.infinity,
+              padding: const EdgeInsets.all(16),
+              decoration: BoxDecoration(
+                color: context.theme.colorScheme.primaryContainer.withValues(
+                  alpha: 0.4,
+                ),
+                borderRadius: BorderRadius.circular(12),
+                border: Border.all(
+                  color: context.theme.colorScheme.primary.withValues(
+                    alpha: 0.3,
+                  ),
+                ),
+              ),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    l10n.perPerson,
+                    style: TextStyle(
+                      color: context.theme.colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                  4.h,
+                  Text(
+                    fromFmt.format(perPersonFrom),
+                    style: context.theme.textTheme.headlineSmall?.copyWith(
+                      fontWeight: FontWeight.bold,
+                      color: context.theme.colorScheme.primary,
+                    ),
+                  ),
+                  Text(
+                    '≈ ${toFmt.format(perPersonTo)}',
+                    style: context.theme.textTheme.bodyLarge?.copyWith(
+                      color: context.theme.colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        );
+      }),
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Tab 2 — Coin/Note Breakdown
+// ---------------------------------------------------------------------------
+
+class _BreakdownTabView extends StatelessWidget {
+  final double amount;
+  final String currencyId;
+
+  const _BreakdownTabView({required this.amount, required this.currencyId});
+
+  @override
+  Widget build(BuildContext context) {
+    var l10n = context.l10n;
+    var minor = _toMinor(amount, currencyId);
+    var breakdown = _breakdownFor(currencyId, minor);
+
+    if (breakdown.isEmpty) {
+      return Center(child: Text(l10n.noResultsFound));
+    }
+
+    var fmt = NumberFormat.simpleCurrency(
+      name: currencyId.toUpperCase(),
+      locale: l10n.localeName,
+    );
+
+    return ListView.separated(
+      padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
+      itemCount: breakdown.length,
+      separatorBuilder: (_, _) => const Divider(height: 1),
+      itemBuilder: (context, i) {
+        var item = breakdown[i];
+        return ListTile(
+          contentPadding: EdgeInsets.zero,
+          leading: CircleAvatar(
+            backgroundColor: item.denom.isBill
+                ? context.theme.colorScheme.primaryContainer
+                : context.theme.colorScheme.secondaryContainer,
+            child: Text(
+              item.denom.isBill ? '💵' : '🪙',
+              style: const TextStyle(fontSize: 18),
+            ),
+          ),
+          title: Text(
+            item.denom.label,
+            style: const TextStyle(fontWeight: FontWeight.bold),
+          ),
+          trailing: Row(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              Text(
+                '× ${item.count}',
+                style: context.theme.textTheme.bodyLarge?.copyWith(
+                  fontWeight: FontWeight.bold,
+                  color: context.theme.colorScheme.primary,
+                ),
+              ),
+              8.w,
+              Text(
+                fmt.format(
+                  (item.denom.valueMinorUnits * item.count) /
+                      (_minorUnitScale[currencyId.toLowerCase()] ?? 100),
+                ),
+                style: TextStyle(
+                  color: context.theme.colorScheme.onSurfaceVariant,
+                ),
+              ),
+            ],
+          ),
+        );
+      },
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Tab 3 — Wallet Check ("Can I Pay?")
+// ---------------------------------------------------------------------------
+
+class _WalletTabView extends StatelessWidget {
+  final double requiredAmount;
+  final String currencyId;
+  final Map<int, RxInt> walletCounts;
+
+  const _WalletTabView({
+    required this.requiredAmount,
+    required this.currencyId,
+    required this.walletCounts,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    var l10n = context.l10n;
+    var denoms = _denominations[currencyId.toLowerCase()] ?? [];
+    var scale = _minorUnitScale[currencyId.toLowerCase()] ?? 100;
+    var requiredMinor = _toMinor(requiredAmount, currencyId);
+
+    var fmt = NumberFormat.simpleCurrency(
+      name: currencyId.toUpperCase(),
+      locale: l10n.localeName,
+    );
+
+    return Column(
+      children: [
+        // Summary bar — updates reactively
+        Obx(() {
+          var walletMinor = 0;
+          for (var i = 0; i < denoms.length; i++) {
+            walletMinor +=
+                (walletCounts[i]?.value ?? 0) * denoms[i].valueMinorUnits;
+          }
+
+          var canPay = walletMinor >= requiredMinor;
+          var diff = (walletMinor - requiredMinor).abs();
+          var diffAmount = diff / scale;
+
+          return AnimatedContainer(
+            duration: const Duration(milliseconds: 250),
+            margin: const EdgeInsets.fromLTRB(20, 12, 20, 4),
+            padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+            decoration: BoxDecoration(
+              color: canPay
+                  ? Colors.green.withValues(alpha: 0.15)
+                  : context.theme.colorScheme.errorContainer.withValues(
+                      alpha: 0.4,
+                    ),
+              borderRadius: BorderRadius.circular(12),
+              border: Border.all(
+                color: canPay
+                    ? Colors.green.withValues(alpha: 0.5)
+                    : context.theme.colorScheme.error.withValues(alpha: 0.5),
+              ),
+            ),
+            child: Row(
+              children: [
+                Text(canPay ? '✅' : '❌', style: const TextStyle(fontSize: 22)),
+                12.w,
+                Expanded(
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      Text(
+                        canPay
+                            ? l10n.youHaveEnough
+                            : l10n.youAreShort(fmt.format(diffAmount)),
+                        style: TextStyle(
+                          fontWeight: FontWeight.bold,
+                          color: canPay
+                              ? Colors.green.shade700
+                              : context.theme.colorScheme.error,
+                        ),
+                      ),
+                      Text(
+                        '${l10n.walletTotal}: ${fmt.format(walletMinor / scale)} / ${l10n.required}: ${fmt.format(requiredAmount)}',
+                        style: context.theme.textTheme.bodySmall?.copyWith(
+                          color: context.theme.colorScheme.onSurfaceVariant,
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ],
+            ),
+          );
+        }),
+        // Denomination list
+        Expanded(
+          child: ListView.separated(
+            padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 8),
+            itemCount: denoms.length,
+            separatorBuilder: (_, _) => const Divider(height: 1),
+            itemBuilder: (context, i) {
+              var denom = denoms[i];
+              return Obx(() {
+                var count = walletCounts[i]?.value ?? 0;
+                return ListTile(
+                  contentPadding: EdgeInsets.zero,
+                  leading: CircleAvatar(
+                    backgroundColor: denom.isBill
+                        ? context.theme.colorScheme.primaryContainer
+                        : context.theme.colorScheme.secondaryContainer,
+                    child: Text(
+                      denom.isBill ? '💵' : '🪙',
+                      style: const TextStyle(fontSize: 18),
+                    ),
+                  ),
+                  title: Text(
+                    denom.label,
+                    style: const TextStyle(fontWeight: FontWeight.bold),
+                  ),
+                  subtitle: count > 0
+                      ? Text(
+                          '= ${fmt.format(denom.valueMinorUnits * count / scale)}',
+                          style: TextStyle(
+                            color: context.theme.colorScheme.primary,
+                            fontSize: 12,
+                          ),
+                        )
+                      : null,
+                  trailing: Row(
+                    mainAxisSize: MainAxisSize.min,
+                    children: [
+                      _StepperButton(
+                        icon: Icons.remove,
+                        onPressed: count > 0
+                            ? () => walletCounts[i]!.value--
+                            : null,
+                        small: true,
+                      ),
+                      SizedBox(
+                        width: 36,
+                        child: Center(
+                          child: Text(
+                            '$count',
+                            style: TextStyle(
+                              fontWeight: FontWeight.bold,
+                              color: count > 0
+                                  ? context.theme.colorScheme.primary
+                                  : context.theme.colorScheme.onSurfaceVariant,
+                              fontSize: 16,
+                            ),
+                          ),
+                        ),
+                      ),
+                      _StepperButton(
+                        icon: Icons.add,
+                        onPressed: () => walletCounts[i]!.value++,
+                        small: true,
+                      ),
+                    ],
+                  ),
+                );
+              });
+            },
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Shared helpers
+// ---------------------------------------------------------------------------
+
+class _InfoRow extends StatelessWidget {
+  final String label;
+  final String value;
+
+  const _InfoRow({required this.label, required this.value});
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Text(
+          '$label ',
+          style: TextStyle(color: context.theme.colorScheme.onSurfaceVariant),
+        ),
+        Expanded(
+          child: Text(
+            value,
+            style: const TextStyle(fontWeight: FontWeight.bold),
+            textAlign: TextAlign.end,
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+class _StepperButton extends StatelessWidget {
+  final IconData icon;
+  final VoidCallback? onPressed;
+  final bool small;
+
+  const _StepperButton({
+    required this.icon,
+    required this.onPressed,
+    this.small = false,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    var size = small ? 32.0 : 40.0;
+    return SizedBox(
+      width: size,
+      height: size,
+      child: IconButton.outlined(
+        padding: EdgeInsets.zero,
+        constraints: BoxConstraints.tight(Size(size, size)),
+        iconSize: small ? 16 : 20,
+        icon: Icon(icon),
+        onPressed: onPressed,
+        color: context.theme.colorScheme.primary,
+        disabledColor: context.theme.colorScheme.onSurfaceVariant.withValues(
+          alpha: 0.3,
+        ),
+      ),
+    );
+  }
+}
diff --git a/lib/l10n/app_de.arb b/lib/l10n/app_de.arb
index 43b597d..e97c090 100644
--- a/lib/l10n/app_de.arb
+++ b/lib/l10n/app_de.arb
@@ -177,5 +177,21 @@
     "quizScenarioTaxiRide": "Taxifahrt",
     "quizScenarioMuseumTicket": "Museumsticket",
     "quizScenarioGroceries": "Lebensmittel",
-    "quizScenarioHotelNight": "Hotelnacht"
+    "quizScenarioHotelNight": "Hotelnacht",
+    "customRateOverride": "Eigener Wechselkurs",
+    "customRateLabel": "Eigener Kurs für 1 {from} in {to}",
+    "resetToLiveRate": "Auf Live-Kurs zurücksetzen",
+    "customRateActive": "Eigener Kurs aktiv",
+    "customRateHelper": "Gib den Kurs ein, den du tatsächlich erhalten hast (z.B. Bar- oder Kartengebühr-Kurs)",
+    "invalidNumber": "Bitte gib eine gültige positive Zahl ein",
+    "splitBill": "Rechnung teilen",
+    "splitBillTab": "Teilen",
+    "numberOfPeople": "Anzahl Personen",
+    "perPerson": "Pro Person",
+    "denominationBreakdown": "Stückelung",
+    "walletCheck": "Kann ich zahlen?",
+    "youHaveEnough": "Du hast genug!",
+    "youAreShort": "Dir fehlen {amount}",
+    "walletTotal": "Geldbörse",
+    "required": "Benötigt"
 }
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 028e151..eebdbe5 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "Taxi ride",
   "quizScenarioMuseumTicket": "Museum ticket",
   "quizScenarioGroceries": "Groceries",
-  "quizScenarioHotelNight": "Hotel night"
+  "quizScenarioHotelNight": "Hotel night",
+  "customRateOverride": "Custom Rate Override",
+  "customRateLabel": "Custom rate for 1 {from} in {to}",
+  "resetToLiveRate": "Reset to Live Rate",
+  "customRateActive": "Custom Rate Active",
+  "customRateHelper": "Enter the rate you actually got (e.g., card or cash rate)",
+  "invalidNumber": "Please enter a valid positive number",
+  "splitBill": "Split Bill",
+  "splitBillTab": "Split",
+  "numberOfPeople": "Number of People",
+  "perPerson": "Per person",
+  "denominationBreakdown": "Breakdown",
+  "walletCheck": "Can I Pay?",
+  "youHaveEnough": "You have enough!",
+  "youAreShort": "You're {amount} short",
+  "walletTotal": "Wallet",
+  "required": "Required"
 }
diff --git a/lib/l10n/app_fr.arb b/lib/l10n/app_fr.arb
index 91a277e..43e8e55 100644
--- a/lib/l10n/app_fr.arb
+++ b/lib/l10n/app_fr.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "Course en taxi",
   "quizScenarioMuseumTicket": "Billet de musée",
   "quizScenarioGroceries": "Courses",
-  "quizScenarioHotelNight": "Nuit d'hôtel"
+  "quizScenarioHotelNight": "Nuit d'hôtel",
+  "customRateOverride": "Taux personnalisé",
+  "customRateLabel": "Taux personnalisé pour 1 {from} en {to}",
+  "resetToLiveRate": "Réinitialiser au taux en direct",
+  "customRateActive": "Taux personnalisé actif",
+  "customRateHelper": "Entrez le taux que vous avez réellement obtenu (par exemple, le taux en espèces ou par carte)",
+  "invalidNumber": "Veuillez entrer un nombre positif valide",
+  "splitBill": "Partager l'addition",
+  "splitBillTab": "Partager",
+  "numberOfPeople": "Nombre de personnes",
+  "perPerson": "Par personne",
+  "denominationBreakdown": "Décomposition",
+  "walletCheck": "Puis-je payer ?",
+  "youHaveEnough": "Vous avez assez !",
+  "youAreShort": "Il vous manque {amount}",
+  "walletTotal": "Portefeuille",
+  "required": "Requis"
 }
diff --git a/lib/l10n/app_hi.arb b/lib/l10n/app_hi.arb
index 4f4cf5f..1c2b35b 100644
--- a/lib/l10n/app_hi.arb
+++ b/lib/l10n/app_hi.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "टैक्सी यात्रा",
   "quizScenarioMuseumTicket": "संग्रहालय टिकट",
   "quizScenarioGroceries": "किराने का सामान",
-  "quizScenarioHotelNight": "होटल की रात"
+  "quizScenarioHotelNight": "होटल की रात",
+  "customRateOverride": "कस्टम दर",
+  "customRateLabel": "1 {from} के लिए {to} में कस्टम दर",
+  "resetToLiveRate": "लाइव दर पर रीसेट करें",
+  "customRateActive": "कस्टम दर सक्रिय",
+  "customRateHelper": "वह दर दर्ज करें जो आपको वास्तव में मिली (जैसे नकद या कार्ड दर)",
+  "invalidNumber": "कृपया एक मान्य सकारात्मक संख्या दर्ज करें",
+  "splitBill": "बिल बाँटें",
+  "splitBillTab": "बाँटें",
+  "numberOfPeople": "लोगों की संख्या",
+  "perPerson": "प्रति व्यक्ति",
+  "denominationBreakdown": "मुद्रा विभाजन",
+  "walletCheck": "क्या मैं भुगतान कर सकता हूँ?",
+  "youHaveEnough": "आपके पास पर्याप्त राशि है!",
+  "youAreShort": "आपके पास {amount} कम है",
+  "walletTotal": "बटुआ",
+  "required": "आवश्यक"
 }
diff --git a/lib/l10n/app_id.arb b/lib/l10n/app_id.arb
index de18123..e467d0d 100644
--- a/lib/l10n/app_id.arb
+++ b/lib/l10n/app_id.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "Naik taksi",
   "quizScenarioMuseumTicket": "Tiket museum",
   "quizScenarioGroceries": "Belanja bahan makanan",
-  "quizScenarioHotelNight": "Semalam di hotel"
+  "quizScenarioHotelNight": "Semalam di hotel",
+  "customRateOverride": "Kurs Kustom",
+  "customRateLabel": "Kurs kustom untuk 1 {from} ke {to}",
+  "resetToLiveRate": "Atur ulang ke kurs langsung",
+  "customRateActive": "Kurs kustom aktif",
+  "customRateHelper": "Masukkan kurs yang sebenarnya Anda dapatkan (misalnya kurs tunai atau kartu)",
+  "invalidNumber": "Harap masukkan angka positif yang valid",
+  "splitBill": "Bagi Tagihan",
+  "splitBillTab": "Bagi",
+  "numberOfPeople": "Jumlah Orang",
+  "perPerson": "Per orang",
+  "denominationBreakdown": "Pecahan",
+  "walletCheck": "Bisa Bayar?",
+  "youHaveEnough": "Uang Anda cukup!",
+  "youAreShort": "Kurang {amount}",
+  "walletTotal": "Dompet",
+  "required": "Dibutuhkan"
 }
diff --git a/lib/l10n/app_ja.arb b/lib/l10n/app_ja.arb
index 11995d4..c0af406 100644
--- a/lib/l10n/app_ja.arb
+++ b/lib/l10n/app_ja.arb
@@ -177,5 +177,21 @@
   "quizScenarioTaxiRide": "タクシー移動",
   "quizScenarioMuseumTicket": "美術館チケット",
   "quizScenarioGroceries": "食料品",
-  "quizScenarioHotelNight": "ホテル1泊"
+  "quizScenarioHotelNight": "ホテル1泊",
+  "customRateOverride": "カスタムレート設定",
+  "customRateLabel": "1 {from} あたりのカスタムレート（{to}）",
+  "resetToLiveRate": "現在のレートに戻す",
+  "customRateActive": "カスタムレート適用中",
+  "customRateHelper": "実際に適用されたレートを入力してください（現金両替やカード支払い時のレートなど）",
+  "invalidNumber": "有効な正の数値を入力してください",
+  "splitBill": "割り勘",
+  "splitBillTab": "割り勘",
+  "numberOfPeople": "人数",
+  "perPerson": "1人あたり",
+  "denominationBreakdown": "両替内訳",
+  "walletCheck": "支払えますか？",
+  "youHaveEnough": "支払えます！",
+  "youAreShort": "{amount}足りません",
+  "walletTotal": "お財布",
+  "required": "必要金額"
 }
diff --git a/lib/l10n/app_localizations.dart b/lib/l10n/app_localizations.dart
index 4be0630..8b26872 100644
--- a/lib/l10n/app_localizations.dart
+++ b/lib/l10n/app_localizations.dart
@@ -1187,6 +1187,102 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Hotel night'**
   String get quizScenarioHotelNight;
+
+  /// No description provided for @customRateOverride.
+  ///
+  /// In en, this message translates to:
+  /// **'Custom Rate Override'**
+  String get customRateOverride;
+
+  /// No description provided for @customRateLabel.
+  ///
+  /// In en, this message translates to:
+  /// **'Custom rate for 1 {from} in {to}'**
+  String customRateLabel(Object from, Object to);
+
+  /// No description provided for @resetToLiveRate.
+  ///
+  /// In en, this message translates to:
+  /// **'Reset to Live Rate'**
+  String get resetToLiveRate;
+
+  /// No description provided for @customRateActive.
+  ///
+  /// In en, this message translates to:
+  /// **'Custom Rate Active'**
+  String get customRateActive;
+
+  /// No description provided for @customRateHelper.
+  ///
+  /// In en, this message translates to:
+  /// **'Enter the rate you actually got (e.g., card or cash rate)'**
+  String get customRateHelper;
+
+  /// No description provided for @invalidNumber.
+  ///
+  /// In en, this message translates to:
+  /// **'Please enter a valid positive number'**
+  String get invalidNumber;
+
+  /// No description provided for @splitBill.
+  ///
+  /// In en, this message translates to:
+  /// **'Split Bill'**
+  String get splitBill;
+
+  /// No description provided for @splitBillTab.
+  ///
+  /// In en, this message translates to:
+  /// **'Split'**
+  String get splitBillTab;
+
+  /// No description provided for @numberOfPeople.
+  ///
+  /// In en, this message translates to:
+  /// **'Number of People'**
+  String get numberOfPeople;
+
+  /// No description provided for @perPerson.
+  ///
+  /// In en, this message translates to:
+  /// **'Per person'**
+  String get perPerson;
+
+  /// No description provided for @denominationBreakdown.
+  ///
+  /// In en, this message translates to:
+  /// **'Breakdown'**
+  String get denominationBreakdown;
+
+  /// No description provided for @walletCheck.
+  ///
+  /// In en, this message translates to:
+  /// **'Can I Pay?'**
+  String get walletCheck;
+
+  /// No description provided for @youHaveEnough.
+  ///
+  /// In en, this message translates to:
+  /// **'You have enough!'**
+  String get youHaveEnough;
+
+  /// No description provided for @youAreShort.
+  ///
+  /// In en, this message translates to:
+  /// **'You\'re {amount} short'**
+  String youAreShort(Object amount);
+
+  /// No description provided for @walletTotal.
+  ///
+  /// In en, this message translates to:
+  /// **'Wallet'**
+  String get walletTotal;
+
+  /// No description provided for @required.
+  ///
+  /// In en, this message translates to:
+  /// **'Required'**
+  String get required;
 }
 
 class _AppLocalizationsDelegate
diff --git a/lib/l10n/app_localizations_de.dart b/lib/l10n/app_localizations_de.dart
index 78ee0be..4b863d2 100644
--- a/lib/l10n/app_localizations_de.dart
+++ b/lib/l10n/app_localizations_de.dart
@@ -618,4 +618,57 @@ class AppLocalizationsDe extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'Hotelnacht';
+
+  @override
+  String get customRateOverride => 'Eigener Wechselkurs';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return 'Eigener Kurs für 1 $from in $to';
+  }
+
+  @override
+  String get resetToLiveRate => 'Auf Live-Kurs zurücksetzen';
+
+  @override
+  String get customRateActive => 'Eigener Kurs aktiv';
+
+  @override
+  String get customRateHelper =>
+      'Gib den Kurs ein, den du tatsächlich erhalten hast (z.B. Bar- oder Kartengebühr-Kurs)';
+
+  @override
+  String get invalidNumber => 'Bitte gib eine gültige positive Zahl ein';
+
+  @override
+  String get splitBill => 'Rechnung teilen';
+
+  @override
+  String get splitBillTab => 'Teilen';
+
+  @override
+  String get numberOfPeople => 'Anzahl Personen';
+
+  @override
+  String get perPerson => 'Pro Person';
+
+  @override
+  String get denominationBreakdown => 'Stückelung';
+
+  @override
+  String get walletCheck => 'Kann ich zahlen?';
+
+  @override
+  String get youHaveEnough => 'Du hast genug!';
+
+  @override
+  String youAreShort(Object amount) {
+    return 'Dir fehlen $amount';
+  }
+
+  @override
+  String get walletTotal => 'Geldbörse';
+
+  @override
+  String get required => 'Benötigt';
 }
diff --git a/lib/l10n/app_localizations_en.dart b/lib/l10n/app_localizations_en.dart
index d6bcfa8..11c0b1a 100644
--- a/lib/l10n/app_localizations_en.dart
+++ b/lib/l10n/app_localizations_en.dart
@@ -618,4 +618,57 @@ class AppLocalizationsEn extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'Hotel night';
+
+  @override
+  String get customRateOverride => 'Custom Rate Override';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return 'Custom rate for 1 $from in $to';
+  }
+
+  @override
+  String get resetToLiveRate => 'Reset to Live Rate';
+
+  @override
+  String get customRateActive => 'Custom Rate Active';
+
+  @override
+  String get customRateHelper =>
+      'Enter the rate you actually got (e.g., card or cash rate)';
+
+  @override
+  String get invalidNumber => 'Please enter a valid positive number';
+
+  @override
+  String get splitBill => 'Split Bill';
+
+  @override
+  String get splitBillTab => 'Split';
+
+  @override
+  String get numberOfPeople => 'Number of People';
+
+  @override
+  String get perPerson => 'Per person';
+
+  @override
+  String get denominationBreakdown => 'Breakdown';
+
+  @override
+  String get walletCheck => 'Can I Pay?';
+
+  @override
+  String get youHaveEnough => 'You have enough!';
+
+  @override
+  String youAreShort(Object amount) {
+    return 'You\'re $amount short';
+  }
+
+  @override
+  String get walletTotal => 'Wallet';
+
+  @override
+  String get required => 'Required';
 }
diff --git a/lib/l10n/app_localizations_fr.dart b/lib/l10n/app_localizations_fr.dart
index b4cdfa8..784ae54 100644
--- a/lib/l10n/app_localizations_fr.dart
+++ b/lib/l10n/app_localizations_fr.dart
@@ -619,4 +619,57 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'Nuit d\'hôtel';
+
+  @override
+  String get customRateOverride => 'Taux personnalisé';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return 'Taux personnalisé pour 1 $from en $to';
+  }
+
+  @override
+  String get resetToLiveRate => 'Réinitialiser au taux en direct';
+
+  @override
+  String get customRateActive => 'Taux personnalisé actif';
+
+  @override
+  String get customRateHelper =>
+      'Entrez le taux que vous avez réellement obtenu (par exemple, le taux en espèces ou par carte)';
+
+  @override
+  String get invalidNumber => 'Veuillez entrer un nombre positif valide';
+
+  @override
+  String get splitBill => 'Partager l\'addition';
+
+  @override
+  String get splitBillTab => 'Partager';
+
+  @override
+  String get numberOfPeople => 'Nombre de personnes';
+
+  @override
+  String get perPerson => 'Par personne';
+
+  @override
+  String get denominationBreakdown => 'Décomposition';
+
+  @override
+  String get walletCheck => 'Puis-je payer ?';
+
+  @override
+  String get youHaveEnough => 'Vous avez assez !';
+
+  @override
+  String youAreShort(Object amount) {
+    return 'Il vous manque $amount';
+  }
+
+  @override
+  String get walletTotal => 'Portefeuille';
+
+  @override
+  String get required => 'Requis';
 }
diff --git a/lib/l10n/app_localizations_hi.dart b/lib/l10n/app_localizations_hi.dart
index 65a2c3a..68f72a5 100644
--- a/lib/l10n/app_localizations_hi.dart
+++ b/lib/l10n/app_localizations_hi.dart
@@ -618,4 +618,57 @@ class AppLocalizationsHi extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'होटल की रात';
+
+  @override
+  String get customRateOverride => 'कस्टम दर';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return '1 $from के लिए $to में कस्टम दर';
+  }
+
+  @override
+  String get resetToLiveRate => 'लाइव दर पर रीसेट करें';
+
+  @override
+  String get customRateActive => 'कस्टम दर सक्रिय';
+
+  @override
+  String get customRateHelper =>
+      'वह दर दर्ज करें जो आपको वास्तव में मिली (जैसे नकद या कार्ड दर)';
+
+  @override
+  String get invalidNumber => 'कृपया एक मान्य सकारात्मक संख्या दर्ज करें';
+
+  @override
+  String get splitBill => 'बिल बाँटें';
+
+  @override
+  String get splitBillTab => 'बाँटें';
+
+  @override
+  String get numberOfPeople => 'लोगों की संख्या';
+
+  @override
+  String get perPerson => 'प्रति व्यक्ति';
+
+  @override
+  String get denominationBreakdown => 'मुद्रा विभाजन';
+
+  @override
+  String get walletCheck => 'क्या मैं भुगतान कर सकता हूँ?';
+
+  @override
+  String get youHaveEnough => 'आपके पास पर्याप्त राशि है!';
+
+  @override
+  String youAreShort(Object amount) {
+    return 'आपके पास $amount कम है';
+  }
+
+  @override
+  String get walletTotal => 'बटुआ';
+
+  @override
+  String get required => 'आवश्यक';
 }
diff --git a/lib/l10n/app_localizations_id.dart b/lib/l10n/app_localizations_id.dart
index 45f92bb..6954965 100644
--- a/lib/l10n/app_localizations_id.dart
+++ b/lib/l10n/app_localizations_id.dart
@@ -618,4 +618,57 @@ class AppLocalizationsId extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'Semalam di hotel';
+
+  @override
+  String get customRateOverride => 'Kurs Kustom';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return 'Kurs kustom untuk 1 $from ke $to';
+  }
+
+  @override
+  String get resetToLiveRate => 'Atur ulang ke kurs langsung';
+
+  @override
+  String get customRateActive => 'Kurs kustom aktif';
+
+  @override
+  String get customRateHelper =>
+      'Masukkan kurs yang sebenarnya Anda dapatkan (misalnya kurs tunai atau kartu)';
+
+  @override
+  String get invalidNumber => 'Harap masukkan angka positif yang valid';
+
+  @override
+  String get splitBill => 'Bagi Tagihan';
+
+  @override
+  String get splitBillTab => 'Bagi';
+
+  @override
+  String get numberOfPeople => 'Jumlah Orang';
+
+  @override
+  String get perPerson => 'Per orang';
+
+  @override
+  String get denominationBreakdown => 'Pecahan';
+
+  @override
+  String get walletCheck => 'Bisa Bayar?';
+
+  @override
+  String get youHaveEnough => 'Uang Anda cukup!';
+
+  @override
+  String youAreShort(Object amount) {
+    return 'Kurang $amount';
+  }
+
+  @override
+  String get walletTotal => 'Dompet';
+
+  @override
+  String get required => 'Dibutuhkan';
 }
diff --git a/lib/l10n/app_localizations_ja.dart b/lib/l10n/app_localizations_ja.dart
index 8ff00ef..bf75622 100644
--- a/lib/l10n/app_localizations_ja.dart
+++ b/lib/l10n/app_localizations_ja.dart
@@ -613,4 +613,56 @@ class AppLocalizationsJa extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'ホテル1泊';
+
+  @override
+  String get customRateOverride => 'カスタムレート設定';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return '1 $from あたりのカスタムレート（$to）';
+  }
+
+  @override
+  String get resetToLiveRate => '現在のレートに戻す';
+
+  @override
+  String get customRateActive => 'カスタムレート適用中';
+
+  @override
+  String get customRateHelper => '実際に適用されたレートを入力してください（現金両替やカード支払い時のレートなど）';
+
+  @override
+  String get invalidNumber => '有効な正の数値を入力してください';
+
+  @override
+  String get splitBill => '割り勘';
+
+  @override
+  String get splitBillTab => '割り勘';
+
+  @override
+  String get numberOfPeople => '人数';
+
+  @override
+  String get perPerson => '1人あたり';
+
+  @override
+  String get denominationBreakdown => '両替内訳';
+
+  @override
+  String get walletCheck => '支払えますか？';
+
+  @override
+  String get youHaveEnough => '支払えます！';
+
+  @override
+  String youAreShort(Object amount) {
+    return '$amount足りません';
+  }
+
+  @override
+  String get walletTotal => 'お財布';
+
+  @override
+  String get required => '必要金額';
 }
diff --git a/lib/l10n/app_localizations_tr.dart b/lib/l10n/app_localizations_tr.dart
index 089ee05..17e74bb 100644
--- a/lib/l10n/app_localizations_tr.dart
+++ b/lib/l10n/app_localizations_tr.dart
@@ -617,4 +617,57 @@ class AppLocalizationsTr extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => 'Otel gecesi';
+
+  @override
+  String get customRateOverride => 'Özel Döviz Kuru';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return '1 $from için özel kur ($to)';
+  }
+
+  @override
+  String get resetToLiveRate => 'Canlı Kura Sıfırla';
+
+  @override
+  String get customRateActive => 'Özel Kur Aktif';
+
+  @override
+  String get customRateHelper =>
+      'Gerçekte aldığınız döviz kurunu girin (ör. nakit veya kart komisyonlu kur)';
+
+  @override
+  String get invalidNumber => 'Lütfen geçerli ve pozitif bir sayı girin';
+
+  @override
+  String get splitBill => 'Hesap Böl';
+
+  @override
+  String get splitBillTab => 'Böl';
+
+  @override
+  String get numberOfPeople => 'Kişi Sayısı';
+
+  @override
+  String get perPerson => 'Kişi başı';
+
+  @override
+  String get denominationBreakdown => 'Para Dökümü';
+
+  @override
+  String get walletCheck => 'Ödeyebilir miyim?';
+
+  @override
+  String get youHaveEnough => 'Yeterli paranız var!';
+
+  @override
+  String youAreShort(Object amount) {
+    return '$amount eksiğiniz var';
+  }
+
+  @override
+  String get walletTotal => 'Cüzdan';
+
+  @override
+  String get required => 'Gereken';
 }
diff --git a/lib/l10n/app_localizations_zh.dart b/lib/l10n/app_localizations_zh.dart
index 5f10932..6bd48fe 100644
--- a/lib/l10n/app_localizations_zh.dart
+++ b/lib/l10n/app_localizations_zh.dart
@@ -611,4 +611,56 @@ class AppLocalizationsZh extends AppLocalizations {
 
   @override
   String get quizScenarioHotelNight => '酒店一晚';
+
+  @override
+  String get customRateOverride => '自定义汇率';
+
+  @override
+  String customRateLabel(Object from, Object to) {
+    return '1 $from 的自定义汇率 ($to)';
+  }
+
+  @override
+  String get resetToLiveRate => '重置为实时汇率';
+
+  @override
+  String get customRateActive => '自定义汇率已激活';
+
+  @override
+  String get customRateHelper => '输入您实际获得的汇率（例如现金或刷卡汇率）';
+
+  @override
+  String get invalidNumber => '请输入有效的正数';
+
+  @override
+  String get splitBill => '分摊账单';
+
+  @override
+  String get splitBillTab => '分摊';
+
+  @override
+  String get numberOfPeople => '人数';
+
+  @override
+  String get perPerson => '每人';
+
+  @override
+  String get denominationBreakdown => '面额分解';
+
+  @override
+  String get walletCheck => '我能付款吗？';
+
+  @override
+  String get youHaveEnough => '您的钱够了！';
+
+  @override
+  String youAreShort(Object amount) {
+    return '您还差 $amount';
+  }
+
+  @override
+  String get walletTotal => '钱包';
+
+  @override
+  String get required => '所需金额';
 }
diff --git a/lib/l10n/app_tr.arb b/lib/l10n/app_tr.arb
index 4bd4d44..2322718 100644
--- a/lib/l10n/app_tr.arb
+++ b/lib/l10n/app_tr.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "Taksi yolculuğu",
   "quizScenarioMuseumTicket": "Müze bileti",
   "quizScenarioGroceries": "Market alışverişi",
-  "quizScenarioHotelNight": "Otel gecesi"
+  "quizScenarioHotelNight": "Otel gecesi",
+  "customRateOverride": "Özel Döviz Kuru",
+  "customRateLabel": "1 {from} için özel kur ({to})",
+  "resetToLiveRate": "Canlı Kura Sıfırla",
+  "customRateActive": "Özel Kur Aktif",
+  "customRateHelper": "Gerçekte aldığınız döviz kurunu girin (ör. nakit veya kart komisyonlu kur)",
+  "invalidNumber": "Lütfen geçerli ve pozitif bir sayı girin",
+  "splitBill": "Hesap Böl",
+  "splitBillTab": "Böl",
+  "numberOfPeople": "Kişi Sayısı",
+  "perPerson": "Kişi başı",
+  "denominationBreakdown": "Para Dökümü",
+  "walletCheck": "Ödeyebilir miyim?",
+  "youHaveEnough": "Yeterli paranız var!",
+  "youAreShort": "{amount} eksiğiniz var",
+  "walletTotal": "Cüzdan",
+  "required": "Gereken"
 }
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index 75087be..c976645 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -180,5 +180,21 @@
   "quizScenarioTaxiRide": "出租车行程",
   "quizScenarioMuseumTicket": "博物馆门票",
   "quizScenarioGroceries": "日用品",
-  "quizScenarioHotelNight": "酒店一晚"
+  "quizScenarioHotelNight": "酒店一晚",
+  "customRateOverride": "自定义汇率",
+  "customRateLabel": "1 {from} 的自定义汇率 ({to})",
+  "resetToLiveRate": "重置为实时汇率",
+  "customRateActive": "自定义汇率已激活",
+  "customRateHelper": "输入您实际获得的汇率（例如现金或刷卡汇率）",
+  "invalidNumber": "请输入有效的正数",
+  "splitBill": "分摊账单",
+  "splitBillTab": "分摊",
+  "numberOfPeople": "人数",
+  "perPerson": "每人",
+  "denominationBreakdown": "面额分解",
+  "walletCheck": "我能付款吗？",
+  "youHaveEnough": "您的钱够了！",
+  "youAreShort": "您还差 {amount}",
+  "walletTotal": "钱包",
+  "required": "所需金额"
 }
diff --git a/lib/providers/paren.dart b/lib/providers/paren.dart
index afb79e5..9781213 100644
--- a/lib/providers/paren.dart
+++ b/lib/providers/paren.dart
@@ -37,6 +37,7 @@ class Paren extends GetxController {
 
   final favorites = <FavoriteConversion>[].obs;
   final sheets = <Sheet>[].obs;
+  final customRates = <String, double>{}.obs;
 
   final currencyTextInput = '1'.obs;
   final currentPage = 1.obs;
@@ -45,7 +46,7 @@ class Paren extends GetxController {
   Paren();
 
   Future<void> init() async {
-    await Future.wait([initCurrencies(), initFavorites(), initSheets()]);
+    await Future.wait([initCurrencies(), initFavorites(), initSheets(), initCustomRates()]);
 
     updateWidgetData();
   }
@@ -63,6 +64,7 @@ class Paren extends GetxController {
     calculatorInputHeight.value = 225.0;
     clearFavorites();
     clearSheets();
+    customRates.clear();
   }
 
   Future<void> fetchCurrencyDataOnline() async {
@@ -393,11 +395,69 @@ class Paren extends GetxController {
     );
   }
 
+  Future<void> initCustomRates() async {
+    try {
+      var customRatesString = await sp.getString('customRates');
+      if (customRatesString != null) {
+        Map<String, dynamic> decoded = jsonDecode(customRatesString);
+        customRates.value = decoded.map((key, value) => MapEntry(key, double.tryParse(value.toString()) ?? 0.0));
+      }
+    } catch (e) {
+      logError('Error initializing custom rates', error: e);
+    }
+  }
+
+  Future<void> saveCustomRates() async {
+    await sp.setString('customRates', jsonEncode(customRates));
+  }
+
+  bool hasCustomRate(String fromId, String toId) {
+    return customRates.containsKey('${fromId.toLowerCase()}_${toId.toLowerCase()}') ||
+        customRates.containsKey('${toId.toLowerCase()}_${fromId.toLowerCase()}');
+  }
+
+  double? getCustomRate(String fromId, String toId) {
+    var key = '${fromId.toLowerCase()}_${toId.toLowerCase()}';
+    if (customRates.containsKey(key)) {
+      return customRates[key];
+    }
+    var revKey = '${toId.toLowerCase()}_${fromId.toLowerCase()}';
+    if (customRates.containsKey(revKey)) {
+      var val = customRates[revKey];
+      if (val != null && val != 0.0) {
+        return 1.0 / val;
+      }
+    }
+    return null;
+  }
+
+  Future<void> setCustomRate(String fromId, String toId, double rate) async {
+    var key = '${fromId.toLowerCase()}_${toId.toLowerCase()}';
+    var revKey = '${toId.toLowerCase()}_${fromId.toLowerCase()}';
+    customRates.remove(revKey);
+    customRates[key] = rate;
+    await saveCustomRates();
+    updateWidgetData();
+  }
+
+  Future<void> removeCustomRate(String fromId, String toId) async {
+    var key = '${fromId.toLowerCase()}_${toId.toLowerCase()}';
+    var revKey = '${toId.toLowerCase()}_${fromId.toLowerCase()}';
+    customRates.remove(key);
+    customRates.remove(revKey);
+    await saveCustomRates();
+    updateWidgetData();
+  }
+
   double convertValue(
     double amount, {
     required String fromId,
     required String toId,
   }) {
+    var customRate = getCustomRate(fromId, toId);
+    if (customRate != null) {
+      return amount * customRate;
+    }
     var from = currencyById(fromId);
     var to = currencyById(toId);
     return amount * to.rate / from.rate;
diff --git a/lib/providers/sheet_exporter.dart b/lib/providers/sheet_exporter.dart
new file mode 100644
index 0000000..5e57682
--- /dev/null
+++ b/lib/providers/sheet_exporter.dart
@@ -0,0 +1,150 @@
+import 'package:intl/intl.dart';
+import 'package:paren/classes/sheet.dart';
+import 'package:paren/classes/sheet_entry.dart';
+import 'package:paren/l10n/app_localizations.dart';
+import 'package:paren/providers/paren.dart';
+
+class SheetExporter {
+  static String _csvEscape(String value) {
+    return '"${value.replaceAll('"', '""')}"';
+  }
+
+  static String _formatCsvAmount(double amount) => amount.toStringAsFixed(2);
+
+  static String csvFileName(String sheetName) {
+    var sanitized = sheetName
+        .trim()
+        .replaceAll(RegExp(r'[^\w\s-]'), '')
+        .replaceAll(RegExp(r'\s+'), '_');
+    return sanitized.isEmpty ? 'sheet_export.csv' : '$sanitized.csv';
+  }
+
+  static double calculateConvertedAmount(
+    double fromAmount,
+    String fromCurrency,
+    String toCurrency,
+    Paren paren,
+  ) {
+    return paren.convertValue(fromAmount, fromId: fromCurrency, toId: toCurrency);
+  }
+
+  static Map<String, double> calculateStats(List<SheetEntry> entries) {
+    if (entries.isEmpty) {
+      return {'sum': 0.0, 'avg': 0.0, 'min': 0.0, 'max': 0.0};
+    }
+
+    var fromAmounts = entries.map((e) => e.amount).toList();
+
+    var sum = fromAmounts.reduce((a, b) => a + b);
+    var avg = sum / fromAmounts.length;
+    var min = fromAmounts.reduce((a, b) => a < b ? a : b);
+    var max = fromAmounts.reduce((a, b) => a > b ? a : b);
+
+    return {'sum': sum, 'avg': avg, 'min': min, 'max': max};
+  }
+
+  static Map<String, double> calculateConvertedStats(
+    List<SheetEntry> entries,
+    Sheet sheet,
+    Paren paren,
+  ) {
+    if (entries.isEmpty) {
+      return {'sum': 0.0, 'avg': 0.0, 'min': 0.0, 'max': 0.0};
+    }
+
+    var convertedAmounts = entries
+        .map(
+          (e) => calculateConvertedAmount(
+            e.amount,
+            sheet.fromCurrency,
+            sheet.toCurrency,
+            paren,
+          ),
+        )
+        .toList();
+
+    var sum = convertedAmounts.reduce((a, b) => a + b);
+    var avg = sum / convertedAmounts.length;
+    var min = convertedAmounts.reduce((a, b) => a < b ? a : b);
+    var max = convertedAmounts.reduce((a, b) => a > b ? a : b);
+
+    return {'sum': sum, 'avg': avg, 'min': min, 'max': max};
+  }
+
+  static String getCategoryLabel(SheetEntryCategory category, AppLocalizations l10n) {
+    return switch (category) {
+      SheetEntryCategory.food => l10n.categoryFood,
+      SheetEntryCategory.transport => l10n.categoryTransport,
+      SheetEntryCategory.hotel => l10n.categoryHotel,
+      SheetEntryCategory.shopping => l10n.categoryShopping,
+      SheetEntryCategory.other => l10n.categoryOther,
+    };
+  }
+
+  static String buildCsvContent(
+    Sheet sheet,
+    List<SheetEntry> entries,
+    Paren paren,
+    AppLocalizations l10n,
+  ) {
+    // Standard ISO-8601 formatting for spreadsheet compatibility
+    var dateFormat = DateFormat('yyyy-MM-dd HH:mm:ss');
+    var stats = calculateStats(entries);
+    var convertedStats = calculateConvertedStats(entries, sheet, paren);
+
+    var lines = <String>[
+      'sep=,', // Help Excel recognize the comma separator automatically
+      [
+        l10n.date,
+        l10n.description,
+        l10n.category,
+        sheet.fromCurrency.toUpperCase(),
+        sheet.toCurrency.toUpperCase(),
+      ].map(_csvEscape).join(','),
+      ...entries.map((entry) {
+        var convertedAmount = calculateConvertedAmount(
+          entry.amount,
+          sheet.fromCurrency,
+          sheet.toCurrency,
+          paren,
+        );
+
+        return [
+          dateFormat.format(entry.createdAt),
+          entry.name,
+          getCategoryLabel(entry.category, l10n),
+          _formatCsvAmount(entry.amount),
+          _formatCsvAmount(convertedAmount),
+        ].map(_csvEscape).join(',');
+      }),
+      '',
+      [
+        l10n.statistics,
+        sheet.fromCurrency.toUpperCase(),
+        sheet.toCurrency.toUpperCase(),
+      ].map(_csvEscape).join(','),
+      [
+        l10n.total,
+        _formatCsvAmount(stats['sum'] ?? 0.0),
+        _formatCsvAmount(convertedStats['sum'] ?? 0.0),
+      ].map(_csvEscape).join(','),
+      [
+        l10n.average,
+        _formatCsvAmount(stats['avg'] ?? 0.0),
+        _formatCsvAmount(convertedStats['avg'] ?? 0.0),
+      ].map(_csvEscape).join(','),
+      [
+        l10n.minimum,
+        _formatCsvAmount(stats['min'] ?? 0.0),
+        _formatCsvAmount(convertedStats['min'] ?? 0.0),
+      ].map(_csvEscape).join(','),
+      [
+        l10n.maximum,
+        _formatCsvAmount(stats['max'] ?? 0.0),
+        _formatCsvAmount(convertedStats['max'] ?? 0.0),
+      ].map(_csvEscape).join(','),
+    ];
+
+    return lines.join('\n');
+  }
+}
diff --git a/lib/screens/home.dart b/lib/screens/home.dart
index 1918636..dcd7323 100644
--- a/lib/screens/home.dart
+++ b/lib/screens/home.dart
@@ -222,7 +222,7 @@ class _HomeState extends State<Home> {
       return 0.h;
     }
 
-    return GlassBottomBar(
+    return GlassTabBar.bottom(
       verticalPadding: Platform.isIOS ? 20 : 38,
       unselectedIconColor: colorScheme.secondary,
       selectedIconColor: colorScheme.primary,
@@ -237,15 +237,12 @@ class _HomeState extends State<Home> {
         glassColor: colorScheme.onSurface.withValues(alpha: 0.1),
       ),
       tabs: [
-        GlassBottomBarTab(icon: Icon(Icons.list), label: l10n.sheets),
-        GlassBottomBarTab(
-          icon: Icon(Icons.calculate_outlined),
-          label: l10n.calculation,
-        ),
-        GlassBottomBarTab(icon: Icon(Icons.quiz_outlined), label: l10n.quiz),
-        GlassBottomBarTab(icon: Icon(Icons.settings), label: l10n.settings),
+        GlassTab(icon: Icon(Icons.list), label: l10n.sheets),
+        GlassTab(icon: Icon(Icons.calculate_outlined), label: l10n.calculation),
+        GlassTab(icon: Icon(Icons.quiz_outlined), label: l10n.quiz),
+        GlassTab(icon: Icon(Icons.settings), label: l10n.settings),
       ],
-      extraButton: GlassBottomBarExtraButton(
+      extraButton: GlassTabBarExtraButton(
         onTap: createSheetDialog,
         icon: Icon(Icons.add),
         label: l10n.createSheet,
diff --git a/lib/screens/home/conversion.dart b/lib/screens/home/conversion.dart
index 6cb7f6d..f4b7182 100644
--- a/lib/screens/home/conversion.dart
+++ b/lib/screens/home/conversion.dart
@@ -6,6 +6,7 @@ import 'package:intl/intl.dart';
 import 'package:paren/classes/sheet_entry.dart';
 import 'package:paren/components/adaptive_overlay.dart';
 import 'package:paren/components/adaptive_snackbar.dart';
+import 'package:paren/components/bill_splitter_sheet.dart';
 import 'package:paren/components/calculator_keyboard.dart';
 import 'package:paren/components/currency_changer_row.dart';
 import 'package:paren/l10n/app_localizations_extension.dart';
@@ -68,19 +69,18 @@ class _ConversionState extends State<Conversion> {
               (element) => element.id == paren.toCurrency.value,
             );
 
-            var fromRate = fromCurrency.rate;
-            var toRate = toCurrency.rate;
-
             var inputConverted =
                 (double.tryParse(paren.currencyTextInput.value) ?? 0);
-            var convertedAmount =
-                (double.tryParse(paren.currencyTextInput.value) ?? 0) *
-                toRate /
-                fromRate;
-            var reConvertedAmount =
-                (double.tryParse(paren.currencyTextInput.value) ?? 0) *
-                fromRate /
-                toRate;
+            var convertedAmount = paren.convertValue(
+              inputConverted,
+              fromId: fromCurrency.id,
+              toId: toCurrency.id,
+            );
+            var reConvertedAmount = paren.convertValue(
+              inputConverted,
+              fromId: toCurrency.id,
+              toId: fromCurrency.id,
+            );
 
             var numberFormatFrom = NumberFormat.simpleCurrency(
               name: fromCurrency.id.toUpperCase(),
@@ -100,6 +100,11 @@ class _ConversionState extends State<Conversion> {
             String inputStr = numberFormatFrom.format(inputConverted);
             String inputStrRe = numberFormatTo.format(inputConverted);
 
+            var hasOverride = paren.hasCustomRate(
+              fromCurrency.id,
+              toCurrency.id,
+            );
+
             return SelectionArea(
               child: Column(
                 children: [
@@ -179,6 +184,45 @@ class _ConversionState extends State<Conversion> {
                       ),
                     ],
                   ),
+                  if (hasOverride)
+                    Padding(
+                      padding: const EdgeInsets.only(top: 8.0),
+                      child: InputChip(
+                        avatar: Icon(
+                          Icons.edit,
+                          size: 16,
+                          color: context.theme.colorScheme.primary,
+                        ),
+                        label: Text(
+                          context.l10n.customRateActive,
+                          style: TextStyle(
+                            color: context.theme.colorScheme.onPrimaryContainer,
+                            fontWeight: FontWeight.bold,
+                            fontSize: 12,
+                          ),
+                        ),
+                        onDeleted: () {
+                          paren.removeCustomRate(
+                            fromCurrency.id,
+                            toCurrency.id,
+                          );
+                        },
+                        deleteIconColor: context.theme.colorScheme.primary,
+                        backgroundColor: context
+                            .theme
+                            .colorScheme
+                            .primaryContainer
+                            .withValues(alpha: 0.5),
+                        shape: RoundedRectangleBorder(
+                          borderRadius: BorderRadius.circular(20),
+                          side: BorderSide(
+                            color: context.theme.colorScheme.primary.withValues(
+                              alpha: 0.3,
+                            ),
+                          ),
+                        ),
+                      ),
+                    ),
                   12.h,
                   buildConversionActions(inputConverted, inputStr, amountStr),
                 ],
@@ -295,6 +339,41 @@ class _ConversionState extends State<Conversion> {
             ],
           ),
         ),
+        IconButton(
+          icon: Icon(
+            Icons.call_split_outlined,
+            color: context.theme.colorScheme.primary,
+          ),
+          tooltip: l10n.splitBill,
+          onPressed: () {
+            Navigator.of(context).push(
+              adaptiveSheetRoute(
+                child: BillSplitterSheet(
+                  initialAmount:
+                      double.tryParse(paren.currencyTextInput.value) ?? 0,
+                  fromCurrencyId: paren.fromCurrency.value,
+                  toCurrencyId: paren.toCurrency.value,
+                ),
+              ),
+            );
+          },
+        ),
+        IconButton(
+          icon: Obx(() {
+            var active = paren.hasCustomRate(
+              paren.fromCurrency.value,
+              paren.toCurrency.value,
+            );
+            return Icon(
+              Icons.price_change_outlined,
+              color: active
+                  ? context.theme.colorScheme.primary
+                  : context.theme.colorScheme.primary.withValues(alpha: 0.6),
+            );
+          }),
+          onPressed: () => _showCustomRateDialog(context),
+          tooltip: l10n.customRateOverride,
+        ),
         IconButton(
           onPressed: () async {
             await Navigator.of(
@@ -409,4 +488,95 @@ class _ConversionState extends State<Conversion> {
       ),
     );
   }
+
+  void _showCustomRateDialog(BuildContext context) {
+    var l10n = context.l10n;
+    var fromId = paren.fromCurrency.value.toUpperCase();
+    var toId = paren.toCurrency.value.toUpperCase();
+
+    var currentOverride = paren.getCustomRate(
+      paren.fromCurrency.value,
+      paren.toCurrency.value,
+    );
+    var liveFrom = paren.currencyById(paren.fromCurrency.value);
+    var liveTo = paren.currencyById(paren.toCurrency.value);
+    var currentRate = currentOverride ?? (liveTo.rate / liveFrom.rate);
+
+    var controller = TextEditingController(
+      text: currentRate.toStringAsFixed(4),
+    );
+
+    Get.dialog(
+      AlertDialog(
+        constraints: adaptiveDialogConstraints(context),
+        insetPadding: adaptiveDialogInsetPadding(context),
+        title: Text(l10n.customRateOverride),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            Text(
+              l10n.customRateLabel(fromId, toId),
+              style: TextStyle(fontWeight: FontWeight.bold),
+            ),
+            8.h,
+            TextField(
+              controller: controller,
+              keyboardType: const TextInputType.numberWithOptions(
+                decimal: true,
+              ),
+              inputFormatters: [
+                TextInputFormatter.withFunction((oldValue, newValue) {
+                  var normalized = newValue.text.replaceAll(',', '.');
+                  return newValue.copyWith(text: normalized);
+                }),
+              ],
+              decoration: InputDecoration(
+                hintText: 'e.g. ${currentRate.toStringAsFixed(4)}',
+                helperText: l10n.customRateHelper,
+                helperMaxLines: 2,
+                border: const OutlineInputBorder(),
+              ),
+            ),
+          ],
+        ),
+        actions: [
+          if (currentOverride != null)
+            TextButton(
+              onPressed: () {
+                paren.removeCustomRate(
+                  paren.fromCurrency.value,
+                  paren.toCurrency.value,
+                );
+                Get.back();
+              },
+              child: Text(
+                l10n.resetToLiveRate,
+                style: TextStyle(color: context.theme.colorScheme.error),
+              ),
+            ),
+          TextButton(onPressed: () => Get.back(), child: Text(l10n.cancel)),
+          OutlinedButton(
+            onPressed: () {
+              var val = double.tryParse(controller.text);
+              if (val != null && val > 0) {
+                paren.setCustomRate(
+                  paren.fromCurrency.value,
+                  paren.toCurrency.value,
+                  val,
+                );
+                Get.back();
+              } else {
+                AdaptiveSnackbar.showSnackBar(
+                  context,
+                  title: l10n.invalidNumber,
+                );
+              }
+            },
+            child: Text(l10n.apply),
+          ),
+        ],
+      ),
+    );
+  }
 }
diff --git a/lib/screens/home/details/sheet_detail.dart b/lib/screens/home/details/sheet_detail.dart
index f2643bf..9519121 100644
--- a/lib/screens/home/details/sheet_detail.dart
+++ b/lib/screens/home/details/sheet_detail.dart
@@ -11,6 +11,7 @@ import 'package:paren/components/sheet_form_bottom_sheet.dart';
 import 'package:paren/l10n/app_localizations_extension.dart';
 import 'package:paren/providers/extensions.dart';
 import 'package:paren/providers/paren.dart';
+import 'package:paren/providers/sheet_exporter.dart';
 import 'package:paren/providers/sheets_provider.dart';
 import 'package:share_plus/share_plus.dart';
 
@@ -47,12 +48,6 @@ class _SheetDetailState extends State<SheetDetail> {
   final reversedSorting = false.obs;
   final selectedCategoryFilter = Rxn<SheetEntryCategory>();
 
-  String _csvEscape(String value) {
-    return '"${value.replaceAll('"', '""')}"';
-  }
-
-  String _formatCsvAmount(double amount) => amount.toStringAsFixed(2);
-
   String _categoryLabel(SheetEntryCategory category) {
     var l10n = context.l10n;
     return switch (category) {
@@ -78,14 +73,6 @@ class _SheetDetailState extends State<SheetDetail> {
     return entries.where((entry) => entry.category == category).toList();
   }
 
-  String _csvFileName(String sheetName) {
-    var sanitized = sheetName
-        .trim()
-        .replaceAll(RegExp(r'[^\w\s-]'), '')
-        .replaceAll(RegExp(r'\s+'), '_');
-    return sanitized.isEmpty ? 'sheet_export.csv' : '$sanitized.csv';
-  }
-
   // Format currency amounts based on the currency code
   String formatCurrencyAmount(double amount, String currencyCode) {
     var numberFormat = NumberFormat.simpleCurrency(
@@ -101,82 +88,22 @@ class _SheetDetailState extends State<SheetDetail> {
     String fromCurrency,
     String toCurrency,
   ) {
-    var fromC = paren.currencies.firstWhere(
-      (currency) => currency.id == fromCurrency,
-      orElse: () => paren.currencies.first,
-    );
-    var toC = paren.currencies.firstWhere(
-      (currency) => currency.id == toCurrency,
-      orElse: () => paren.currencies.first,
+    return SheetExporter.calculateConvertedAmount(
+      fromAmount,
+      fromCurrency,
+      toCurrency,
+      paren,
     );
-
-    // Convert through EUR base rate
-    var inEur = fromAmount / fromC.rate;
-    return inEur * toC.rate;
-  }
-
-  String _buildCsvContent(Sheet sheet, List<SheetEntry> entries) {
-    var l10n = context.l10n;
-    var dateFormat = DateFormat('dd. MMMM yyyy');
-    var stats = _calculateStats(entries);
-    var convertedStats = _calculateConvertedStats(entries, sheet);
-    var lines = <String>[
-      [
-        l10n.date,
-        l10n.description,
-        l10n.category,
-        sheet.fromCurrency.toUpperCase(),
-        sheet.toCurrency.toUpperCase(),
-      ].map(_csvEscape).join(','),
-      ...entries.map((entry) {
-        var convertedAmount = calculateConvertedAmount(
-          entry.amount,
-          sheet.fromCurrency,
-          sheet.toCurrency,
-        );
-
-        return [
-          dateFormat.format(entry.createdAt),
-          entry.name,
-          _categoryLabel(entry.category),
-          _formatCsvAmount(entry.amount),
-          _formatCsvAmount(convertedAmount),
-        ].map(_csvEscape).join(',');
-      }),
-      '',
-      [
-        l10n.statistics,
-        sheet.fromCurrency.toUpperCase(),
-        sheet.toCurrency.toUpperCase(),
-      ].map(_csvEscape).join(','),
-      [
-        l10n.total,
-        _formatCsvAmount(stats['sum'] ?? 0.0),
-        _formatCsvAmount(convertedStats['sum'] ?? 0.0),
-      ].map(_csvEscape).join(','),
-      [
-        l10n.average,
-        _formatCsvAmount(stats['avg'] ?? 0.0),
-        _formatCsvAmount(convertedStats['avg'] ?? 0.0),
-      ].map(_csvEscape).join(','),
-      [
-        l10n.minimum,
-        _formatCsvAmount(stats['min'] ?? 0.0),
-        _formatCsvAmount(convertedStats['min'] ?? 0.0),
-      ].map(_csvEscape).join(','),
-      [
-        l10n.maximum,
-        _formatCsvAmount(stats['max'] ?? 0.0),
-        _formatCsvAmount(convertedStats['max'] ?? 0.0),
-      ].map(_csvEscape).join(','),
-    ];
-
-    return lines.join('\n');
   }
 
   Future<void> _exportSheetAsCsv(Sheet sheet) async {
     var sortedEntries = sortBy(List<SheetEntry>.from(sheet.entries));
-    var csvContent = _buildCsvContent(sheet, sortedEntries);
+    var csvContent = SheetExporter.buildCsvContent(
+      sheet,
+      sortedEntries,
+      paren,
+      context.l10n,
+    );
     var box = context.findRenderObject() as RenderBox?;
     Rect? rect;
     if (box != null) {
@@ -186,7 +113,7 @@ class _SheetDetailState extends State<SheetDetail> {
     await SharePlus.instance.share(
       ShareParams(
         files: [XFile.fromData(utf8.encode(csvContent), mimeType: 'text/csv')],
-        fileNameOverrides: [_csvFileName(sheet.name)],
+        fileNameOverrides: [SheetExporter.csvFileName(sheet.name)],
         sharePositionOrigin: rect,
       ),
     );
@@ -375,18 +302,7 @@ class _SheetDetailState extends State<SheetDetail> {
 
   // Calculate statistics for the entries
   Map<String, double> _calculateStats(List<SheetEntry> entries) {
-    if (entries.isEmpty) {
-      return {'sum': 0.0, 'avg': 0.0, 'min': 0.0, 'max': 0.0};
-    }
-
-    var fromAmounts = entries.map((e) => e.amount).toList();
-
-    var sum = fromAmounts.reduce((a, b) => a + b);
-    var avg = sum / fromAmounts.length;
-    var min = fromAmounts.reduce((a, b) => a < b ? a : b);
-    var max = fromAmounts.reduce((a, b) => a > b ? a : b);
-
-    return {'sum': sum, 'avg': avg, 'min': min, 'max': max};
+    return SheetExporter.calculateStats(entries);
   }
 
   // Calculate statistics for the converted amounts
@@ -394,26 +310,7 @@ class _SheetDetailState extends State<SheetDetail> {
     List<SheetEntry> entries,
     Sheet sheet,
   ) {
-    if (entries.isEmpty) {
-      return {'sum': 0.0, 'avg': 0.0, 'min': 0.0, 'max': 0.0};
-    }
-
-    var convertedAmounts = entries
-        .map(
-          (e) => calculateConvertedAmount(
-            e.amount,
-            sheet.fromCurrency,
-            sheet.toCurrency,
-          ),
-        )
-        .toList();
-
-    var sum = convertedAmounts.reduce((a, b) => a + b);
-    var avg = sum / convertedAmounts.length;
-    var min = convertedAmounts.reduce((a, b) => a < b ? a : b);
-    var max = convertedAmounts.reduce((a, b) => a > b ? a : b);
-
-    return {'sum': sum, 'avg': avg, 'min': min, 'max': max};
+    return SheetExporter.calculateConvertedStats(entries, sheet, paren);
   }
 
   List<SheetEntry> sortBy(List<SheetEntry> entries) {
diff --git a/pubspec.lock b/pubspec.lock
index 3b85704..a1412e6 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -205,10 +205,10 @@ packages:
     dependency: "direct main"
     description:
       name: dio
-      sha256: aff32c08f92787a557dd5c0145ac91536481831a01b4648136373cddb0e64f8c
+      sha256: ea2bad3c89a27635ce2d85cce4d6b199da49a5a48ec77b03e45b65a3b90922b0
       url: "https://pub.dev"
     source: hosted
-    version: "5.9.2"
+    version: "5.10.0"
   dio_web_adapter:
     dependency: transitive
     description:
@@ -498,10 +498,10 @@ packages:
     dependency: "direct main"
     description:
       name: liquid_glass_widgets
-      sha256: "0d90d073fe57a67ee9153f887ed4d3384f5fcedaf53ca52c840f5ba835792118"
+      sha256: "82cf91db40e5a7b8e8f18b170c2ceecfcdd3e1bd1fa04c0d16fcb3a596006f25"
       url: "https://pub.dev"
     source: hosted
-    version: "0.17.1"
+    version: "0.20.1"
   logging:
     dependency: transitive
     description:
@@ -554,10 +554,10 @@ packages:
     dependency: "direct dev"
     description:
       name: msix
-      sha256: bed33b53662c7eac66dc4f9b4176d03140307e6a892ab21ce529be6f74393db0
+      sha256: "61415c352e8aea084332b8a5514e6408c961c8cdeca202804fff1040eb555ac7"
       url: "https://pub.dev"
     source: hosted
-    version: "3.17.0"
+    version: "3.18.0"
   objective_c:
     dependency: transitive
     description:
@@ -610,10 +610,10 @@ packages:
     dependency: transitive
     description:
       name: path_provider_linux
-      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      sha256: "58c2005f147315b11e9b4a7bc889cd5203e250cba8e3f012dae259b4972b5c16"
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.1"
+    version: "2.2.2"
   path_provider_platform_interface:
     dependency: transitive
     description:
@@ -714,10 +714,10 @@ packages:
     dependency: "direct main"
     description:
       name: share_plus
-      sha256: a857d8b1479250aff6b57a51b2c02d31ca05848d441817c43f1640c885c286c0
+      sha256: "9eee8283462d91a7a1c8bdb67d08874abd75a2f8fae3bc0ca033035e375fb3d8"
       url: "https://pub.dev"
     source: hosted
-    version: "13.1.0"
+    version: "13.2.0"
   share_plus_platform_interface:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index fbdd855..341c7e5 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -19,10 +19,10 @@ dependencies:
   get:
     git:
       url: https://github.com/yurtemre7/flutter-get
-  dio: 5.9.2
+  dio: 5.10.0
   shared_preferences: 2.5.5
   url_launcher: 6.3.2
-  share_plus: 13.1.0
+  share_plus: 13.2.0
   fl_chart: 1.2.0
   home_widget:
     git:
@@ -31,7 +31,7 @@ dependencies:
   flutter_colorpicker: 1.1.0
   stupid_simple_sheet: 0.9.1+1
   json_annotation: 4.12.0
-  liquid_glass_widgets: ^0.17.1
+  liquid_glass_widgets: ^0.20.1
   cupertino_calendar_picker: ^2.2.6
   # image_picker: 1.1.2
 
@@ -46,7 +46,7 @@ dev_dependencies:
   # `dart run build_runner build`
   build_runner: 2.15.0
   # `dart run msix:create`
-  msix: 3.17.0
+  msix: 3.18.0
   integration_test:
     sdk: flutter
 
diff --git a/release-ios.sh b/release-ios.sh
index 7ef9f77..697ef49 100755
--- a/release-ios.sh
+++ b/release-ios.sh
@@ -6,7 +6,7 @@ echo "==> flutter build ios --release --build-number='$git_count'"
 flutter build ios --release --build-number="$git_count"
 cd ios || exit
 echo "==> bundler exec fastlane release"
-bundler exec fastlane release
+bundler exec fastlane release || exit
 cd .. || exit
 git add ./ios/
 git commit -m "chore: update ios version"