Google Play Billing Library 7.0 Support

[ericsu0630]

Hello, Thanks for the awesome package!

I was wondering if there are plans to migrate the Google Play Billing Library to version 7 for this package?

My app crashes when I try to upgrade/downgrade a subscription plan.

I looked into it deeper and the reason is because.
BillingFlowParams.ProrationMode
https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.ProrationMode.
has been deprecated and replaced with.
SubscriptionUpdateParams.ReplacementMode
https://developer.android.com/reference/com/android/billingclient/api/BillingFlowParams.SubscriptionUpdateParams.ReplacementMode

I am currently using 7.1.1 in my app/build.gradle dependencies because other my other flutter packages depend on it.

[tonytang0114]

HI also have the same problem.
Google right now needed us to force update Google Pay Billing library to at least 7.0 before 2025-08-31

[ygalbrami]

I just got same Email from Google, needed us to force update Google Pay Billing library to at least 7.0 before 2025-08-31

[bat01]

@hyochan I am also having this issue, we only have 60 days to migrate on billing library 7.0. , I really love your plugin and migration to something else would be a nightmare at the moment. Is there any possibility you could make an update to support billing library 7.0?

Thank you so much!

[valterh4ck3r]

Guys, use this fork : https://github.com/NilK-Duy/flutter_inapp_purchase

[IMHitesh]

We had rewritten our iOS plugin a few months ago to support StoreKit 2, and now we believe it's the right time to upgrade our Android implementation as well.

We’ve migrated to BillingClient 8.0 and rewritten the Android-side logic accordingly. For anyone looking for a modern, actively maintained alternative, we've published a new plugin:

🔗 flutter_inapp_purchase_plus

💡 You don’t need to rewrite your whole codebase — just change the plugin name in pubspec.yaml and update the import statements. The rest of your existing logic should work seamlessly.

This package is designed as a drop-in replacement, but with updated support for the latest billing and purchase APIs. Feedback and contributions are welcome!

[hyochan]

Closes via #515