Toss

A minimal, single-tap coin-flip Android app. Tap the coin, get HEADS or TAILS. That's it.

Built with Expo + React Native, published to Google Play via EAS.

• Package: app.stridehub.toss
• Latest release: v1.1.0 (see CHANGELOG.md — one build per day during closed testing, plan in ROADMAP.md)
• By: STRIDEHUB

Features

• Single animated coin on the home screen — tap to flip (HEADS / TAILS)
• Flip stats under the coin — heads/tails counts, current streak, last 10 results (persisted), one-tap reset
• Light / dark theme toggle in the header, persisted with AsyncStorage
• Drawer sidebar (Settings, Terms & Conditions, Privacy Policy)
• Splash overlay with the logo + BY STRIDEHUB, fades into the app
• Inter font (Google Fonts) throughout

Tech stack

Layer	Choice
Runtime	Expo SDK 54, React Native 0.81, React 19
Language	TypeScript
Navigation	@react-navigation/drawer 7
Animation	react-native-reanimated 4 + worklets
Persistence	@react-native-async-storage/async-storage
Fonts	@expo-google-fonts/inter
Build/Ship	EAS Build + EAS Submit

Project layout

.
├── App.tsx                     # Providers + Drawer navigator + splash gate
├── app.json                    # Expo config (icon, splash, package, plugins)
├── babel.config.js             # babel-preset-expo + react-native-worklets/plugin
├── eas.json                    # EAS Build + Submit profiles
├── assets/
│   └── Heads.png               # App logo (used for icon + splash + adaptive icon)
└── src/
    ├── components/
    │   ├── DocumentScreen.tsx  # Shared scaffold for T&C / Privacy
    │   └── SplashOverlay.tsx   # JS splash with logo + "BY STRIDEHUB"
    ├── navigation/
    │   └── DrawerContent.tsx   # Custom sidebar
    ├── screens/
    │   ├── HomeScreen.tsx      # Coin + theme toggle button
    │   ├── SettingsScreen.tsx
    │   ├── TermsScreen.tsx
    │   └── PrivacyScreen.tsx
    ├── store/
    │   ├── SettingsStore.tsx   # Voice assist + flip axis, persisted
    │   └── StatsStore.tsx      # Flip stats (counts, streak, recent), persisted
    └── theme/
        └── ThemeContext.tsx    # Light/dark colors + persistence

Develop locally

Prereqs: Node 20+, npm, Android device or emulator with Expo Go matching SDK 54.

npm install
npx expo start --clear

Scan the QR with Expo Go on your phone, or press a to launch Android.

Build for production

Automated (default): push a version tag and GitHub Actions does the rest — EAS builds the AAB and auto-submits it to the Play closed-testing (alpha) track:

git tag v1.2.0 && git push origin main v1.2.0

Requires two repo secrets (one-time setup): EXPO_TOKEN (create here) and GOOGLE_SERVICE_ACCOUNT_JSON (contents of the Play service account key). See .github/workflows/eas-release.yml.

Manual fallback: requires eas-cli installed globally (npm install -g eas-cli) and an Expo account linked to this project.

# First time only — generate the Android upload keystore on EAS
eas credentials --platform android

# Build the production AAB on EAS servers (10–20 min)
eas build --platform android --profile production

Ship to Google Play

Place a Google Play service account JSON in the project root as google-service-account.json. It's already in .gitignore.

eas submit --platform android --profile production

This pushes the latest production build to the Closed testing (alpha) track and publishes it to testers automatically (see eas.json). Google requires a 14-day closed test with 12+ engaged testers before granting production access — daily builds and release notes live in ROADMAP.md and CHANGELOG.md. Promote to production manually in Play Console once access is granted.

Configuration touch-points

File	What it controls
app.json	App name, package, version, icon, adaptive icon, splash plugin, EAS project ID
eas.json	Build profiles (dev / preview / production) + Play Store submit settings
babel.config.js	Babel preset + worklets plugin (required for Reanimated 4)

License

Private — © STRIDEHUB.