Lost 9% of new subscribers last month because entitlements didn’t sync from web payments to mobile app. Users paid but got locked out. Anyone solved the web-to-app subscription handshake reliably? Preferably without building custom middleware.
Three-layer verification system:
- Instant webhook to Adapty on payment success
- Client-side polling with exponential backoff
- Fallback email with magic link
Implemented through Web2Wave’s pre-built adapters. Reduced sync failures from 9% to 0.3%.
Critical lesson: Don’t rely on single-point verification - assume network issues will occur.
We added a status check screen. If entitlements don’t load in 10 seconds, users can force refresh.