I'm struggling with in app payments on iOS. When I try to launch app, I'm restoring past purchases, sometimes I'm getting SKError with code 0 (unknown error). I am not able to get available product...

I'm using the in-app-purchase package for my Flutter app. There is one non-consumable in app purchase in my app. Each user creates a user account (using Firebase Authentication). A user can be in a...

I am implementing a discount system for subscriptions in my Flutter application, but I do not know how present different Google Play Store subscription offers with the Flutter in_app_purchases pack...

The payment flow is working completely fine, but when the slow test card is used the consumable product cannot be purchased again. the plugin used is in_app_purchase: ^3.0.4. To reproduce the issue...

I recently implemented the in-app subscription into my app. Now I am working on adding the promo codes for a subscription. People with promo code can have 15 days trial and after that, they'll be c...

I am using Firebase Cloud Functions to handle the back-end process for In-App-Purchases. If I purchase a subscription (on Flutter/Android client), the purchase flow works without problems. However,...