Question

I’m building an app that uses In app purchase. I’m using non-consumable product types.

Everything works ok (setting up products, buying…).

What I would like to do is to verify which products a user had already purchased (when reinstalling app or changing device)?

Is that possible?

Thanks

Answer 1

See the Restoring Transactions section of the In-App Purchase guide. Here is what it specifically says:

Store Kit provides built-in functionality to restore transactions for
non-consumable products, auto-renewable subscriptions and free
subscriptions. To restore transactions, your application calls the
payment queue’s restoreCompletedTransactions method. The payment queue
sends a request to the App Store to restore the transctions. In
return, the App Store generates a new restore transaction for each
transaction that was previously completed.