what happens on multiple purchase - Non-Renewal subscription in-app purchase

Question

I am implementing a sample which includes the in-app purchase feature. The subscription is of non-renewal type.

In case of auto-renewal subscription, if the user ha

Answer 1

For Apple, there is no "within the validity period" for non-renewing subscriptions. The duration of the period, fortunately or unfortunately, is left up to the developer.

Yes, when the user buys a non-renewing subscription a second (or third, etc) time, the are charged again.

Subscription validity is up to the developer.

It seems common for developers to use their own server to track the expiry period of a non-renewing subscription. For example, this helps with the "restore" feature required by Apple.