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

Yes i am altering the subscription start date obviously, and i am getting this from the transaction. According to this subscription start date i am altering the expiry date as well.

The concern here is to avoid the user from getting charged again in any case if he has already subscribed. And, for that i am using iCloud to support restore functionality in user's multiple devices.

Answer 2

You can alter the subscription start date from the day of repurchase of the APP. This will enable extended validity.

This validity extension mechanism also serves when the user realizes his subscription is about to expire and renews it before hand rather than letting the subscription end.

From the development perspective, logging the first subscribed time along with the current sub and expire time would serve the purpose.

Answer 3

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.