About udid.io Udid.io gives you one tap to find the UDID of your iPhone, iPad or iPod directly using mobile Safari without need in iTunes or desktop/MacBook computer. UDID of your device is needed to iOS developers to be available to install early versions of mobile applications onto your device to debug and test such apps.

Secure. Sure We don't store any of your private data on our servers. All data transferring to your browser has been ciphered using 256-bit AES to prevent hijacking. Don't tell your UDID of iPhone, IMEI or Serial Number to any non-trusted third party persons to be kept from fraud.