How do I detect if an app has been cracked without examining the SignerIdentity?

Question

There used to be a method to check if an application was purchased from the App Store, to protect against cracking:

NSBundle *bundle = [NSBundle mainBundle]; 
NS         


        

Answer 1

While not a check to see if an Application was purchased from the App Store, I use this code to check to see if my application is running on a jailbroken device:

+(BOOL)isJailbroken { 
    NSURL* url = [NSURL URLWithString:@"cydia://package/com.example.package"]; 
    return [[UIApplication sharedApplication] canOpenURL:url]; 
}