Update: At Zco, we pride ourselves on staying at the forefront of mobile app development. While this UDID guide is still accurate, there's now a much easier way to do so. Just head over to udid.io in your device's web browser to find your UDID in just a few taps. Note that the site won't work if you're browsing in private mode.

How do you find the UDID for iPhone and iPad?

  1. Click on the Desktop icon on your Mac
  2. Click on the Window logo if you are a Windows user
  3. Click 'All Programs' to open the iTunes program folder
  4. Choose your device under the "Devices" tab
  5. Open the “Summary tab” to see your device information
  6. Click on the serial number, your UDID will appear in its place.
  7. Open the “Edit” menu in iTunes.
  8. Select Copy Identifier to copy your UDID to the clipboard.

Project managers at Zco Corporation are often asked how to find the unique device ID (UDID) for an iPad, iPod or iPhone. The UDID is important for beta testing apps. Finding it is a simple process that only requires an iTunes account. Developers frequently use the UDID to assign beta copies of applications, identify the device, and to save changes between installations and deletions of an app.


MaciTunes Desktop Screenshot

Windows Home Screen Picture Sample

Windows Home Screen Image

iTunes Store Mac OS Screenshot


iPad Serial Mac Machine



UDID Mac Machine Screen

Edit Menu Mac Machine

Edit Menu Windows Screen

Access to your UDID is an important part of the app development process. A third-party app in beta won’t run on an Apple device without Apple’s prior approval. UDID permissions allow an app access to run on a specific device for testing purposes. Apple requires that developers locate the UDID manually in order to install and test software that has not yet been approved for Apple devices. We hope these steps have helped you to locate your UDID.

Do you have more questions our project managers can answer? We’d be happy to help! Please ask us in the comments field below. If you are a Zco client, feel free to call your project manager directly with any additional questions you have.

Tags: what is my udid, how to find udid, iphone device id, device id iphone, ipad device id