Is it possible to share ONE In-App purchase between TWO Apps?

I have a product that has two different build, one for iPhone, and another one f开发者_StackOverflow社区or iPad.

Is it possible to unlock features via In-App purchase in both with make the playement once from one of them?

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You cannot use the same ID, howerver, you can manage information about which purchases have been made by which users on your own server, and update that information every time a user buys something. You just have to check on that server which purchases have been made.