# Find UDID for an iPhone or an iPad

> Learn various methods to find the UDID of your iPhone or iPad. Understand its significance in device identification and explore its usage for application access.

https://docs.pandasuite.com/essentials/mobile-publishing/ios/find-udid-for-an-iphone-or-an-ipad/

**Discover the different methods to find the UDID of an iPad or iPhone.**

A UDID (Unique Device Identifier) is a long string of characters used to uniquely identify an iOS device. It typically looks like this: `00007030-001839E021E8402E`

You might need your device’s UDID for specific cases to restrict access to an application ([Ad Hoc](https://docs.pandasuite.com/essentials/mobile-publishing/ios/deploy-your-ios-via-ad-hoc-distribution/), Development, or Enterprise) exclusively to registered devices.

Follow the methods below to retrieve the UDID of an iPad or iPhone.

**Method 1: Use Finder (macOS Catalina and later versions)**

1. **Connect your device:**

   - Plug your device into your Mac using a USB cable.

2. **Open Finder:**

   - Launch Finder and locate your device in the sidebar.

3. **Find the UDID:**

   - Click on your iPhone/iPad in the sidebar.
   - In the device's main panel, locate the **Serial Number** field.
   - Click on the **Serial Number** to toggle to the UDID.

4. **Copy the UDID:**
   - Right-click on the UDID (or press **Command + C**) to copy it.

### Method 2: Use iTunes (Windows or older macOS versions)

1. **Connect your device:**

   - Use a USB cable to connect your iPad to your computer.

2. **Open iTunes:**

   - Launch iTunes and select your device.

3. **Locate the UDID:**

   - Find the **Serial Number** under your device's name.
   - Click on the **Serial Number** to cycle through identifiers until the UDID appears.

4. **Copy the UDID:**
   - Once the UDID is displayed, right-click on it (or press **Ctrl + C** on Windows) to copy it.

### Method 3: Use an online tool

1. **Open Safari on your iPhone/iPad:**

   - Go to a UDID retrieval site, such as [get.udid.io](https://get.udid.io).

2. **Follow the instructions:**

   - Follow the on-screen instructions, which often involve downloading and installing a small profile.
   - This profile allows the site to read and display your device's UDID.

3. **View and copy the UDID:**
   - Once the UDID is displayed, copy it for your use.

### Share your UDID

After retrieving your UDID, it will look like this: `00007030-001839E021E8402E`

Share this identifier when needed. For example, you might need it to register your device for testing or other purposes.