In-App Purchase Integration Nightmare
Adding in-app purchases to a React Native app means dealing with two different billing APIs, receipt validation, sandbox testing, and subscription lifecycle management.
The Problem
In-app purchases are one of the most complex parts of mobile development:
- Two different APIs: StoreKit 2 (iOS) and Google Play Billing Library (Android)
- Receipt validation: Server-side verification for both platforms
- Subscription lifecycle: Renewals, cancellations, grace periods, downgrades
- Sandbox testing: Different sandbox environments per platform
- Compliance: Store-mandated UI requirements, refund handling
Time Cost
| Task | Time |
|---|---|
| Learn StoreKit 2 API | 4-8 hours |
| Learn Google Play Billing API | 4-8 hours |
| Implement purchase flow | 4-8 hours |
| Server-side receipt validation | 4-6 hours |
| Subscription management | 4-6 hours |
| Sandbox testing (both platforms) | 4-8 hours |
| Edge cases (restore, refund, etc.) | 4-6 hours |
| Total | 28-50 hours |
That's an entire week of full-time work. For billing.
Common Failures
1. Receipt Validation Gaps
Purchases go through but the server doesn't validate the receipt. Users get free access.
2. Subscription State Drift
User cancels on iOS but the app still shows active. Or the subscription renews but the app doesn't reflect it.
3. Sandbox vs Production Mismatch
Everything works in sandbox. Breaks in production. Different timing, different behaviors, different edge cases.
4. Google Play Compliance
Google requires that all digital goods purchased within the app use Google Play Billing. Using Stripe for digital subscriptions gets you rejected.
How AI App Factory Handles It
RevenueCat abstracts both platforms into a single API:
- One SDK, one API, one dashboard
- Server-side receipt validation handled automatically
- Subscription lifecycle managed by RevenueCat
- Entitlement checks via a simple hook
- Sandbox testing documented step-by-step
28-50 hours of billing work → already done.
Related
- RevenueCat Integration — the pre-configured billing solution
- App Store Rejection — billing compliance rejections
How AI App Factory solves this
RevenueCat abstracts iOS and Android billing into one SDK. Receipt validation, subscription lifecycle, entitlement checks — all pre-configured. 28-50 hours of work already done.
Skip this problem entirely.
AI App Factory handles the boring infrastructure so you can build the product.