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

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.