Instant, automated UDID registration. Run the latest iOS 17.5 beta before anyone else.

What's a UDID?

Your device (e.g. iPhone) has a unique identifier called a UDID. Your UDID allows us to activate that device so it can run iOS beta software. Nothing malicious can be done by knowing your UDID so it is perfectly safe.

Where's my UDID?

Please note: Using an app to find your UDID will give you an invalid UDID (beginning FFFF). This method was stopped by Apple a few years ago. Please use one of these methods to obtain your UDID.

Method 1: Using your device

iOS device:

tvOS device:

Method 2: Using iTunes

Visit this website for an animation that's simple to follow.

What if I have an Apple Watch?