I detect IAP Cracker like this:
if ([[NSFileManager defaultManager] fileExistsAtPath:@\"/Library/MobileSubstrate/DynamicLibraries/iap.dylib\"]){ NSLog(@\"IAP
Just verify you IAP receipts with Apple to prevent spoof purchases. See: http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/StoreKitGuide/VerifyingStoreReceipts/VerifyingStoreReceipts.html