What does restore purchases in In-App purchases mean

Question

I don t really understand this idea  Do I have to provide a restore button for the user  What method should this method invoke  What will restore will do

User · Answer

Is it as optional functionality   If you won t provide it when user will try to purchase non-consumable product AppStore will restore old transaction  But your app will think that this is new transaction   If you will provide restore mechanism then your purchase manager will see restored transaction   If app should distinguish this options then you should provide functionality for restoring previously purchased products

User · Answer

You will get rejection message from apple just because the product you have registered for inApp purchase might come under category Non-renewing subscriptions and consumable products  These type of products will not automatically renewable  you need to have explicit restore button in your application   for other type of products it will automatically restore it   Please read following text which will clear your concept about this       Once a transaction has been processed and removed from the queue  your   application normally never sees it again  However  if your application   supports product types that must be restorable  you must include an   interface that allows users to restore these purchases  This interface   allows a user to add the product to other devices or  if the original   device was wiped  to restore the transaction on the original device       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 transactions  In   return  the App Store generates a new restore transaction for each   transaction that was previously completed  The restore transaction   object   s originalTransaction property holds a copy of the original   transaction  Your application processes a restore transaction by   retrieving the original transaction and using it to unlock the   purchased content  After Store Kit restores all the previous   transactions  it notifies the payment queue observers by calling their   paymentQueueRestoreCompletedTransactionsFinished  method       If the user attempts to purchase a restorable product  instead of   using the restore interface you implemented   the application receives   a regular transaction for that item  not a restore transaction    However  the user is not charged again for that product  Your   application should treat these transactions identically to those of   the original transaction  Non-renewing subscriptions and consumable   products are not automatically restored by Store Kit  Non-renewing   subscriptions must be restorable  however  To restore these products    you must record transactions on your own server when they are   purchased and provide your own mechanism to restore those transactions   to the user   s devices

User · Answer

You typically restore purchases with this code     SKPaymentQueue defaultQueue  restoreCompletedTransactions     It will reinvoke -paymentQueue updatedTransactions on the observer s  for the purchased items  This is useful for users who reinstall the app after deletion or install it on a different device   Not all types of In-App purchases can be restored

[iphone] What does "restore purchases" in In-App purchases mean?

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