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iOS - Get the UDID of a test device

Every iPhone, iPod, or iPad has a unique number named Unique Device Identifier (UDID), which corresponds to a sequence of 40 letters and numbers unique to your device. It's like a serial number but much harder to guess.

Depending  on the macOS  your Mac is using, there is 2 ways to retrieve the UDID of your device.

- [MacOS prior to Catalina]goto:1
- [From macOS Catalina]goto:2


1

From macOS Catalina

1. Connect your iPhone to your Mac
2. Open the Finder
3. Click on your device under "Locations" in the left column
4. When you reach the information page of the terminal, click on the description of your device as shown below:

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5. Right click on the UDID to copy the information
6. Save the info somewhere safe, be careful, the full line is copied, not only the UDID.

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2

MacOS prior to Catalina

1. Connect your iPhone to your Mac
2. Open iTunes and click on the button iPhone
3. When you reach the information page of the terminal, click on the "Serial number"

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4. The text changes for "UDID"
By clicking on the serial number. The text becomes "UDID", it will just copy the UDID field value (for that, immediately after displaying the value of the UDID in iTunes, go to Edit > Copy).

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3

Your developer account

Now you will add your UDID in your developer account  and that for each of your devices (iPhone, iPod or iPad) in order to test the AdHoc version of your app on your registered devices.


4

Don't have an iPhone/iPad?

If you don't have an iPhone, you can use this UDID:
a867ab56428f9416e6ec0c2b68903668a78b6eb8
However, without an iPhone, you won't be able to test the AdHoc version.