How can I retrieve the UDID on iOS?

Question

I was wondering if it was possible to find out the UDID of the user\'s iPhone. Can someone shed some light?

Answer 1

In IOS5 and above, use this one to find UDID

NSString *uuidString = nil;
CFUUIDRef uuid = CFUUIDCreate(NULL);
if (uuid) {
    uuidString = (__bridge NSString *)CFUUIDCreateString(NULL, uuid);
    CFRelease(uuid);
}
NSLog(@"UDID: [%@]", uuidString);

Answer 2

Remember UDID is deprecated in IOS 5. In iOS 7, Apple now always returns a fixed value when querying the MAC to specifically thwart the MAC as base for an ID scheme. So you now really should use -[UIDevice identifierForVendor] or create a per-install UUID. Hope it will help for someone.

Answer 3

It's very simple. Go to Xcode Window and select Devices or you can find it in Organizer.

http://www.raywenderlich.com/2915/ios-code-signing-under-the-hood/organizerudid

Answer 4

In IOS5 and above, use this one to find UDID

NSString *uuidString = nil;

CFUUIDRef uuid = CFUUIDCreate(NULL); ...

I think you are showing how to generate a unique identification number, not to get the unique id of a device.