What is UDID?

A UDID or Unique Device Identifier is a string of 40 characters assigned to different Apple devices like iPhone, iPad, and iPod Touch to identify them uniquely. The UDID line is comprised of letters and numerals and is unique to each Apple device.

The devices launched after 2018 use a string of 25 hexadecimal characters. So, they get shorter now but serve the same purpose.

How to get UDID using TestApp.io?

The process to get your device’s UDID using TestApp.io is pretty simple. Just follow the steps given below to find the unique identifier of your iOS device.

1 - Install TestApp.io on your iOS device and set up your profile
2 - Tap the menu button on the top left of the screen to reveal the menu options
3 - Tap Accounts & Settings

Get My UDID Account and Settings

4 - Tap Share Device ID (UDID)

share device UDID

5 - You’ll be redirected to ‘portal.testapp.io’; Tap the Download button on this page to download and install the temporary configuration profile.

Get your device UDID

6 - In the device Settings, tap on ‘Profile Downloaded’

Get your device UDID

7 - Tap ‘Install’ on the top right of the ‘Install Profile’ screen to install the temporary TestApp.io profile that you downloaded in Step 5

Get your device UDID

8 - Tap ‘Continue’ on the next screen to add your device’s UDID to the developer account

Get your device UDID

That’s it! That’s how simple it is to get the UDID of your iOS device and add it to the developer account for alpha and beta testing of the apps. Get started now!

Get your device UDID

Feedback & Support

Developers built TestApp.io to solve the pain of app distribution for mobile app development teams.

Join our Slack channel for feedback and support.

Happy releasing 🎉