Expense Tracker Mobile App

A minimal, modern React Native app built with Expo for tracking expenses, managing budgets, and categorizing spending.

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Quick Start

1. Install dependencies:

   npm install

2. Set up Firebase:
   • Add .env file and its values, refer below.
3. Start the app:

   npm start

4. Run on device:
   • Scan the QR code with Expo Go (Android) or Camera app (iOS)

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Build & Install on Android (Standalone)

1. Build AAB:

   eas build -p android --profile production

2. Download the .aab from the Expo build link.
3. Convert to APK:
   • Download bundletool
   • Run:

     java -jar bundletool.jar build-apks \
       --bundle=your_app.aab \
       --output=output.apks \
       --mode=universal \
       --overwrite
     unzip output.apks -d output_folder

4. Install APK:

   adb install -r output_folder/universal.apk

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Scripts

npm start         # Start dev server
npm run ios       # Run on iOS simulator
npm run android   # Run on Android emulator
npm run web       # Run on web
npx expo start --clear # Clear cache

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Environment Variables

Create a .env file:

EXPO_PUBLIC_FIREBASE_API_KEY=your_api_key
EXPO_PUBLIC_FIREBASE_AUTH_DOMAIN=your_domain
EXPO_PUBLIC_FIREBASE_PROJECT_ID=your_project_id
EXPO_PUBLIC_FIREBASE_STORAGE_BUCKET=your_bucket
EXPO_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=your_sender_id
EXPO_PUBLIC_FIREBASE_APP_ID=your_app_id
EXPO_PUBLIC_FIREBASE_MEASUREMENT_ID=your_measurement_id

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Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Test thoroughly
5. Submit a pull request

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License

MIT License