A React Native app for learning Japanese through Magic: The Gathering cards. Search any card, read the Japanese rules text with an interactive tappable glossary, and build a personal vocabulary deck with spaced repetition reviews.
| Card View | Rules Text | Keyword Popup | Study Screen | Favorites |
|---|---|---|---|---|
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- Card Search — search by English name, romaji, kana, or kanji. Falls back to Scryfall's fuzzy matcher for OCR noise tolerance.
- Camera Scan — scan a physical card with your camera to look it up instantly.
- Japanese Rules Text — every card displays its official Japanese localization with color-coded tappable keywords.
- Interactive Glossary — tap any highlighted term to see its reading (furigana), English translation, and example cards that use it.
- Study Sets — browse 200+ MTG terms grouped by category (Evergreen, Actions, Zones, Card Types, etc.).
- Spaced Repetition (SRS) — add words to a personal deck and review them with an Anki-style SM-2 flashcard system. Cards show the Japanese term on the front, and reveal the reading, translation, and an example card image on the back.
- Favorites — heart any card to save it to a dedicated Favorites tab for quick access.
- Word of the Day — a new vocabulary term surfaces on the home screen each day.
| Layer | Technology |
|---|---|
| Framework | React Native 0.81 / Expo SDK 54 |
| Navigation | React Navigation (Stack + Bottom Tabs) |
| Card Data | Scryfall API |
| OCR | rn-mlkit-ocr |
| Fonts | Noto Sans JP (400 / 700) |
| Storage | AsyncStorage |
| Notifications | expo-notifications (app icon badge) |
# Install dependencies
npm install
# Start the dev server
npx expo startOpen in Expo Go or run on a simulator/device with npx expo run:ios / npx expo run:android.
src/
├── components/ # Ruby (furigana), CardRenderer, InteractiveText, WordPopup
├── context/ # StudyContext — SRS deck state and AsyncStorage sync
├── screens/ # SearchScreen, CardScreen, StudyScreen, FavoritesScreen, …
└── utils/ # scryfall.ts, dictionary.ts, srs.ts, favorites.ts
Card data, images, and Japanese localizations are fetched live from the Scryfall API. MTG card names, rules text, and imagery are property of Wizards of the Coast. This project is a fan-made study tool and is not affiliated with or endorsed by Wizards of the Coast.