Flutter IAP Store Beta Mode Design and Purchase Logic Hardening
When implementing IAP (In-App Purchase) in a Flutter app and running an open beta, gaps like “it is beta but the store shows paid prices” or “credits are duplicated on Restore” start to surface. Here are the issues I encountered and how they were resolved. 1. The Contradiction Between Beta Mode and the Store Problem // constants.dart static const bool isOpenBeta = true; When isOpenBeta = true, spendCredits() does not deduct credits. This means AI features are free. ...