>> Thanks >> I will use the UUID or DeviceID instead of the phone number. > > The device ID (UIDevice's -uniqueIdentifier) is deprecated in iOS 5. > Don't use it. (As you can probably gather, Apple is rightfully keen on > preventing developers from trying to track users in non-anonymized ways.) > > CFUUID is fine, but keep in mind that if you are storing it in > NSUserDefaults then this presumably is not actually device-specific but > app-specific, in the sense that a backup-and-restore ought to preserve > the NSUserDefaults database across devices (say, if the user upgrades > from an older iPhone to a newer one). > > Now, you haven't said *why* you are doing all this. I can't think of a > good reason why you would need a true device identifier in your > application, so hopefully the above caveat won't affect you. > > If you would like, perhaps you can elaborate on your goal? > We should keep in mind that this could be an enterprise app that would not necessarily be for sale on the App Store. Enterprises can distribute iOS apps (along with a Profile) independently of the App Store. (OS X server is one method.) So, perhaps, some asset tracking system?_______________________________________________
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