I need a production-ready Android app built and packaged for the Google Play Store. A simple, clean UI that matches Material 3 guidelines is preferred, but visual polish comes second to rock-solid payment flow and Play-Console compliance. I want to copy if possible function of one other app. What you’ll hand over • Full Android Studio project (Kotlin or Java) • Signed release AAB/APK plus keystore setup instructions • Integrated gateway running in both sandbox and live modes, with callbacks correctly handled • Brief walkthrough video or screenshots that prove a successful test transaction inside the app Acceptance criteria 1. Payment completes without crashes on Android 8–14. 2. Google Play’s target-API, privacy label, and billing requirements are satisfied. 3. I can upload the provided bundle to an internal-test track with zero policy warnings. Show me past work—links or Play-Store listings for any e-commerce or payment-enabled apps you’ve shipped. Prior experience publishing under your own or a client’s account is essential because I plan to push this build live as soon as it clears review.