# Find Your iPhone UDID: Free, in Safari, No Computer

> Get your iPhone or iPad UDID in under a minute, right on the device. Open this page in Safari, allow a one-time profile, and copy the UDID to send to your developer. Free, no account, nothing kept.

Canonical: https://buildferry.app/udid

## How it works

1. Open this page in **Safari** on the iPhone or iPad and tap **Get my UDID**.
2. Tap **Allow** in the pop-up, then **Close**.
3. Open **Settings**, tap **Profile Downloaded**, then **Install**.
4. Safari opens with your UDID. Tap **Copy UDID** and send it to your developer.

The profile link is https://buildferry.app/u/profile.mobileconfig. It only works when opened in Safari on the iPhone or iPad itself.

Other ways to find a UDID (Finder on a Mac, Xcode, iTunes on Windows): https://buildferry.app/find-iphone-udid.md

## Questions

### Is this UDID finder free?

Yes. There is no account, no app to install and no limit. It is made by BuildFerry, which shares iOS test builds with testers.

### Does BuildFerry keep my UDID?

No. The UDID, model and iOS version are encrypted into the result page's own address, and nothing is saved on our side. That page stops working after 7 days.

### Does the profile stay on my iPhone?

No. It is a one-time "Profile Service" profile: iOS sends the device details and removes it straight away. It only asks for the UDID, model and iOS version.

### Why does iOS say the profile is Verified?

It is signed with BuildFerry's certificate, so iOS can show who it is from. A profile that only asks for device details can't install anything or read your data.

### Why do developers need my UDID?

Apps that aren't on the App Store or TestFlight only install on iPhones registered with the developer's Apple account. The UDID is how the iPhone is registered.

### Why does it say "Security Delay in Progress" or "could not install a profile"?

That's Apple's Stolen Device Protection. Away from a familiar place like home or work, iOS makes you wait an hour before installing any profile. When it notifies you, open Settings, tap Profile Downloaded and install it, or try again from home.

### It downloaded but nothing happened. What now?

Open Settings: iOS shows Profile Downloaded near the top. If it is gone, it expired after 8 minutes, so tap Get my UDID again. It has to be Safari: other browsers on iOS can't install profiles.