I need to add the subscriptions for my app on the basis of monthly and yearly subscription and I am trying to use the billing subscription support for Android as per this guidelines.
Questions:
- Shall we can implement this support without the help of the backend?
- Can I get the purchase state after the time period is expired for the user?
- How will the states be returned? Does it changesacknowledgementState or purchasestate automatically for the user after the renewal time period is expired?