How to find UDID of iPhone, iPad or iPod Touch

Published on February 07, 2015

All iPhones, iPads, iPod Touches have unique identifiers called Unique Device ID, abbreviated as UDID. This is a 40-character long string, something like this


If you're developing an iOS app or getting one developed, you will have to look for the IDID of the iOS mobile device you'll be testing it on. To do that, follow these steps:

  • Open iTunes (Applications โ†’ iTunes App).
  • Connect your iPhone, iPad or iPod Touch to the computer via USB.
  • When it's plugged in, you'll see the icon on the top, and the device's settings in the left panel.
  • Click on Summary. You'll see the Serial Number in the main panel. iTunes
  • Click on the serial number. It will toggle to display the UDID.

  • The UDID is the 40-character long string. Look at this screenshot for reference. iTunes

  • To copy the UDID into the clipboard, press Command+C. You can also go to Edit โ†’ Copy. That will also copy the UDID to the clipboard.

Now, you can email the UDID to your developer or use it to whitelist your application in the Apple developer portal.

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Published on February 07, 2015