Discussion: Strategy for In-App Purchases (StoreKit 2 & Missing .NET SDKs)

[anose001]

Hi all,

I’m looking to start a discussion on the best approach for implementing In-App Purchases (IAP) in Avalonia, as there currently isn't a clear cross-platform solution.

• Android: Works well using existing Google Play Billing libraries.
• iOS: Presents a challenge. StoreKit 1 is deprecated, but StoreKit 2 is a Swift-only API, making standard .NET bindings/interop difficult to implement.
• Third-Party Services: Providers like RevenueCat, Adapty, and Qonversion have C# SDKs for Unity, but they do not offer native .NET SDKs for Avalonia/MAUI.

Discussion:
How is the community handling IAP on iOS for production apps?
Are you manually binding StoreKit 2, or relying on wrappers for the deprecated StoreKit 1?
Has anyone successfully integrated the third-party Unity SDKs into a standard .NET project?

Any guidance or examples would be great.

[anose001]

Adding IAPHUB as an option for dotnet cross platform In-App Purchasing and Receipt Validation
https://github.com/iaphub/iaphub-dotnet

[kerams]

https://github.com/jamesmontemagno/InAppBillingPlugin
Sadly abandonded now, and uses StoreKit 1. Moreover, there's still no easy way to create Swift bindings on .NET (required for StoreKit 2). .NET is in a very sorry state in this area.

I'd consider using something like Stripe for a web-based checkout if it's an option for your iOS store (not sure if google play allows it at all) and your business model.