Why do you say it's a pain to implement? It's an HTTP+JSON API, and there's only one error code you have to care about: If the value of the status key is 0, th

Why do you say it's a pain to implement? It's an HTTP+JSON API, and there's only one error code you have to care about: If the value of the status key is 0, this is a valid receipt. If the value is anything other than 0, this receipt is invalid. http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/StoreKitGuide/VerifyingStoreReceipts/VerifyingStoreReceipts.html http://developer.apple.com/library/ios/#documentation/Networ...