UID Lookup is a free application to find out the information about the user ID. You can find out the information of the device, which is needed sometimes at work, so it is awesome if you have it right here in a small, ad-free app.

You need to enter the phone number and the application will send you an E-Mail with the information you need.

You can find out the device model, the OS version, the build number, and many more. You can also find out the information about the phone, like the make, model, firmware, hardware, etc.

The application is also needed to get the user ID for a certain device, which is needed to create an user account on a certain website.