Find your iPhone's unique device identifier (UDID)
What is UDID?
Every iPhone and iPod Touch has a unique device identifier (Unique Device Identifier, UDID), which is a combination of 40 letters and numbers that are specific to your device. It is like an internal serial number, but it is difficult to figure out what it stands for. it could look something like this: 2b6f0cc904d137be2e1730235f5664094b831186.
Why do we need your UDID?
Your iPhone can only install programs which are approved by Apple. Applications in the App Store must be approved by Apple prior to General Distribution to customers, but this allows customers to be able to try an App prior to it going to the App Store. We register your UDID with Apple so they can approve our application specifically for your device (iPhone or iPod Touch).
How can I find my UDID?
You can copy/paste your UDID from iTunes or e-mail it directly from your device using a free app from the App Store. Both examples can be seen below.
E-mail with a free App
Go to the App Store on your iPhone and search for Ad Hoc Helper. Install and run the App. The App will create an e-mail with your UDID. Send the e-mail to the software developer who you want to give access to the App you are testing. Once the software developer receives your UDID they will register the device so you are able to test the version of the App prior to it's release in the App Store.
Copy/Paste from iTunes
1. Start iTunes and connect your iPhone.
2. In iTunes v.11 click on the Summary tab to find your UDID. In older versions of iTunes you should do the following: In the right panel look up information about your iPhone, including its name, capacity, software version, serial number and phone number.
3. Next find your (UDID) by clicking on serial number.
4. Copy the identifier (UDID) by selecting Edit (from the drop down menu) ➔ Copy (alternatively right click and choose Copy Identifier (UDID)).
5. Paste in the identifier (UDID) in an email to, for example: firstname.lastname@company.se (you should be able to paste in the identifier (UDID) in an e-mail program or web browser by selecting Edit ➔ Paste, alternatively you can right click and select Paste.