I’m looking for someone to turn a straightforward idea into a clean Android application: every time a user watches an AdMob rewarded video they earn in-app coins that they can later redeem for real rewards. Here is what I need built: • Native Android code (Java or Kotlin) that integrates Google AdMob rewarded video ads, handles loading, displaying, and fail-over gracefully. • A lightweight coin wallet that increments the balance once the ad has finished and Google confirms the reward callback. • A simple, tamper-resistant way for users to see their current balance and trigger a “Redeem” flow (for now we can stub the actual fulfilment—an API endpoint or an email summary is fine, as long as it clearly records the transaction). • Basic onboarding and privacy dialog so the app is Play Store-ready. Acceptance criteria 1. Ad shows reliably and pays out the correct coin value each time. 2. Coins persist across sessions (local Room database or Firebase Realtime/Firestore are both acceptable). 3. The redemption action logs coin deductions and prevents negative balances. 4. Code is well-commented and delivered with an APK plus the full Android Studio project so I can iterate later. If you have existing snippets or libraries that speed this up, great—just keep the UI minimal, responsive, and in line with Material guidelines. Let me know your timeframe and any questions you have.