diff --git a/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailAdapter.kt b/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailAdapter.kt
index daad5916e..d61eb2584 100644
--- a/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailAdapter.kt
+++ b/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailAdapter.kt
@@ -446,6 +446,7 @@ class AppDetailAdapter(private val callbacks: Callbacks) :
 
     private class InstallButtonViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
         val button = itemView.findViewById<MaterialButton>(R.id.action)!!
+        val incompatibleText = itemView.findViewById<TextView>(R.id.incompatible_text)!!
 
         val actionTintNormal = button.context.getColorFromAttr(android.R.attr.colorPrimary)
         val actionTintOnNormal = button.context.getColorFromAttr(MaterialR.attr.colorOnPrimary)
@@ -1120,6 +1121,15 @@ class AppDetailAdapter(private val callbacks: Callbacks) :
             field = value
         }
 
+    var incompatibilityReason: CharSequence? = null
+        set(value) {
+            if (field != value) {
+                field = value
+                val index = items.indexOf(Item.InstallButtonItem)
+                if (index > 0) notifyItemChanged(index)
+            }
+        }
+
     var status: Status = Status.Idle
         set(value) {
             if (field != value) {
@@ -1437,6 +1447,10 @@ class AppDetailAdapter(private val callbacks: Callbacks) :
             ViewType.INSTALL_BUTTON -> {
                 holder as InstallButtonViewHolder
                 item as Item.InstallButtonItem
+
+                holder.incompatibleText.isVisible = incompatibilityReason != null
+                holder.incompatibleText.text = incompatibilityReason ?: ""
+
                 val action = action
                 holder.button.apply {
                     isEnabled = action != null
diff --git a/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailFragment.kt b/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailFragment.kt
index 0bc804de8..14135688a 100644
--- a/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailFragment.kt
+++ b/app/src/main/kotlin/com/looker/droidify/ui/appDetail/AppDetailFragment.kt
@@ -48,6 +48,8 @@ import com.looker.droidify.utility.common.extension.isSystemApplication
 import com.looker.droidify.utility.common.extension.systemBarsPadding
 import com.looker.droidify.utility.common.extension.updateAsMutable
 import com.looker.droidify.utility.common.shareUrl
+import com.looker.droidify.utility.extension.android.Android.name
+import com.looker.droidify.utility.extension.android.Android.primaryPlatform
 import com.looker.droidify.utility.extension.mainActivity
 import com.looker.droidify.utility.extension.startUpdate
 import com.stfalcon.imageviewer.StfalconImageViewer
@@ -249,6 +251,40 @@ class AppDetailFragment() : ScreenFragment(), AppDetailAdapter.Callbacks {
         val canLaunch =
             product != null && installed != null && installed.launcherActivities.isNotEmpty()
 
+        val incompatibilityReason = if (product != null) {
+            val selectedRelease = product.selectedReleases.firstOrNull()
+            val incompatibility = selectedRelease?.incompatibilities?.firstOrNull()
+            val installedItem = installed?.installedItem
+
+            when {
+                incompatibility != null -> {
+                    when (incompatibility) {
+                        is Release.Incompatibility.MinSdk,
+                        is Release.Incompatibility.MaxSdk -> getString(
+                            stringRes.incompatible_with_FORMAT,
+                            name
+                        )
+                        is Release.Incompatibility.Platform -> getString(
+                            stringRes.incompatible_with_FORMAT,
+                            primaryPlatform ?: getString(stringRes.unknown)
+                        )
+                        is Release.Incompatibility.Feature -> getString(
+                            stringRes.requires_FORMAT,
+                            incompatibility.feature
+                        )
+                    }
+                }
+                installedItem != null && selectedRelease != null && installedItem.signature != selectedRelease.signature -> {
+                    getString(stringRes.incompatible_signature_DESC)
+                }
+                else -> null
+            }
+        } else {
+            null
+        }
+
+        (recyclerView?.adapter as? AppDetailAdapter)?.incompatibilityReason = incompatibilityReason
+
         val actions = buildSet {
             if (canInstall) add(Action.INSTALL)
             if (canUpdate) add(Action.UPDATE)
diff --git a/app/src/main/res/layout/install_button.xml b/app/src/main/res/layout/install_button.xml
index ba392681d..791f1250a 100644
--- a/app/src/main/res/layout/install_button.xml
+++ b/app/src/main/res/layout/install_button.xml
@@ -1,8 +1,28 @@
 <?xml version="1.0" encoding="utf-8"?>
-<com.google.android.material.button.MaterialButton xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:id="@+id/action"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="56dp"
-    android:layout_marginHorizontal="12dp"
-    app:iconGravity="textStart" />
\ No newline at end of file
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingHorizontal="16dp"
+    android:paddingVertical="8dp">
+
+    <TextView
+        android:id="@+id/incompatible_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:gravity="center"
+        android:text="@string/incompatible_version"
+        android:textColor="?attr/colorError"
+        android:textAppearance="?attr/textAppearanceBodyMedium"
+        android:visibility="gone" />
+
+    <com.google.android.material.button.MaterialButton xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:id="@+id/action"
+        android:layout_width="match_parent"
+        android:layout_height="56dp"
+        android:layout_marginHorizontal="12dp"
+        app:iconGravity="textStart" />
+
+</LinearLayout>