Yes. If you're on Android, do a checksum of your classes.dex file. If you use the Android LVL, chances are the cracker will patch your app, and thereby change t

Yes. If you're on Android, do a checksum of your classes.dex file. If you use the Android LVL, chances are the cracker will patch your app, and thereby change the checksum of classes.dex. You can use the checksum to then decide whether or not the app is pirated, and report it to your servers. For iOS, you can check if the app is pirated by seeing whether or not the cryptid flag is set in the LC_ENCRYPTION_INFO of the MACH-O header, and then report it to your servers if it's not.