How to restore purchases for the Apple app?
Sometimes you need to buy an in-app purchase to enable some premium feature of the app or something in the game. Apple calls this a non-consumable purchase. When you switch your iPhone/iPad/Mac or any of your Apple devices, you will find it is not enabled in the new device. Suppose you restore your iPhone, iPad, or Mac from a backup, or you deleted and reinstalled an app with in-app purchases. In that case, you can read this article.
Here are the steps for the people who want to know the steps about the below questions:
How do I restore app purchases?
What is a restore purchase on iPhone?
How do I restore iTunes purchases?
How do I restore the purchase on Mac?
How do I install an app I already purchased?
Before we move on to the steps, please make sure you use the same Apple account as you bought the in-app purchases. Otherwise, it can not be restored.
Restore your in-app purchases in the app you have used.
It is straightforward; all apps will provide a menu called "Restore Purchase" in the app, either in the main UI or purchase UI or settings. So please take a look at the app, and you will find it. It is simple, click the menu to restore your purchase.
Restore your purchase by purchasing again
As my testing and user feedback, in some cases, the restore menu might not work as it should. In this case, you can still restore the purchase. You can buy the item you have repurchased, do not worry about the re-charge; it would re-charge since you already purchased it. So feel free to have a try. But make sure you need to use the same Apple ID and buy the same package. If you purchased the yearly subscription before, you need to repurchase the annual subscription to restore it.
Apple already has an online help page for this, so you can also find detailed information If you don't see your in-app purchases.
If you have the redeem code, here are the steps about How to restore your redeem code.