Card Helper

Offline credit card rewards helper built with Expo + React Native. No auth, no backend—data stays on device via AsyncStorage.

What it does

• Manage your card list locally (add/delete, multi-select)
• Compare cards across 14 reward categories (groceries, dining, gas, travel, etc.)
• Dark-mode friendly UI with searchable add modal

Run locally (Expo Go)

cd mobile
npm install
npx expo start --tunnel   # or --lan if on same Wi-Fi

Open the QR code in Expo Go.

Dev notes

• Code lives in mobile/ (Expo Router).
• No environment variables required (all data is static/offline).
• Lint: cd mobile && npm run lint

Build for stores (summary)

• Install EAS CLI: npm install -g eas-cli
• Configure: cd mobile && eas build:configure
• Android AAB: eas build --platform android --profile production
• iOS: requires Apple account; build via EAS.