I'm trying to find out how to tell if a customer makes a NEW purchase or is doing a RESTORE purchase. I use Prime31's StoreKit plugin, and so far they've not provided any solutions aside from using the unique device ID, which doesn't actually solve the problem since users on my app can purchase on one device and then restore on another. (I'm paying royalties per download to some artists, and would prefer to make it all automated and not have to look up sales figures each month)
Can anyone think of a way?
Unfortunately, if I'm not mistaken, it seems that with the plugin / apple, a "restore" call simply returns a "successful sale", without any way to tell if the "sale" was new or not.
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