Android App: Auth & Purchases

Job ID: 40505196

Budget: ₹37,500 – ₹75,000 INR

I need a new Android-only application built from the ground up. The app must open with a clean user-authentication flow (email, social, or phone—whichever SDK you feel is fastest to integrate). Once signed in, users will see core content that can be expanded through in-app purchases. Google Play Billing should be wired up end-to-end, including test and production environments, and all purchase events must be validated on the server side.

Timely, relevant push notifications are essential. I will provide copy and basic scheduling rules; you will handle Firebase Cloud Messaging integration, topic or token management, and delivery tracking.

Deliverables
• Full Android Studio project with readable, well-commented Kotlin or Java code
• Secure auth module (OAuth2 or Firebase Auth preferred)
• Google Play Billing implementation with a sample consumable and a subscription product
• Firebase Cloud Messaging setup and sample notification logic
• One debug APK and one signed release APK ready for the Play Console
• Brief README explaining build steps, keys to replace, and where to adjust notification rules

I will test on multiple devices before final sign-off, so please keep the minimum SDK sensible and follow current Google Play policies. Let me know the estimated timeline, any libraries you plan to use, and past work that proves you can deliver a smooth, stable Android experience.