android – Are there any Java or Kotlin libraries to make checking subscriptions with Apple or Google simpler?

I’m migrating the backend logic from a legacy backend to a brand new backend written in Kotlin. My shopper apps are iOS/Android native.

I want to use Apple/Google API’s to examine if subscriptions have been granted to particular customers, and grant them premium entry to my app.

I might implement these API calls by referring to the Apple/Google docs;
however as a substitute I’m questioning if there are any standard open supply libraries that streamline these calls?

It will be nice if each shops could possibly be unified as effectively.