Android App With In-App Purchases

I need an experienced Android developer to turn my idea into a polished Google-Play-ready app that includes seamless in-app purchase capability.

Here’s the core of what I already know: the project will target Android only, and in-app purchases are essential for monetisation. Beyond that, I’d like your expertise to refine the overall feature set, suggest the right architecture, and outline any additional services (analytics, crash reporting, cloud back-end, etc.) that will make the app scale smoothly.

What I expect from you
• A short discovery session to translate my high-level concept into a detailed technical brief.
• Implementation of Google Play Billing (latest library) with secure purchase validation.
• Clean, maintainable Kotlin/Java code, fully commented and committed to a private Git repo.
• An APK (or AAB) ready for internal testing, plus instructions for publishing on Google Play.
• Basic documentation so I can maintain the app or hand it to another developer in future.

Acceptance criteria
1. All in-app purchase flows pass Google’s test environment without errors.
2. The app installs and runs on Android 8.0 (API 26) through the latest release.
3. Codebase builds from a clean clone with no manual tweaks required.

If this aligns with your skill set, let’s discuss the timeline and any additional features you believe would enhance user experience and revenue potential.