IDFA Viewer

Your iPhone's advertising identifier, in one tap.

The Identifier for Advertisers (IDFA) is the identifier Apple assigns to your device for advertising. Finding it by hand is confusing. IDFA Viewer shows it to you, lets you copy it, and lets you share it.

Download on the App Store

What you see

Main screen before permission: authorization status not determined, with a button to request tracking permission — Request permission

Main screen once authorized: the IDFA shown in full with buttons to copy it to the clipboard and share it — Copy or share

About screen explaining what the IDFA is and how App Tracking Transparency protects it — Learn what it is

What it does

Shows your IDFA. Ask for tracking permission through Apple's App Tracking Transparency prompt and the identifier appears on screen.
Copy in one tap. The identifier goes to your clipboard, ready to paste into a test device list, a campaign tool or a bug report.
Share it. Send the identifier to another device or app through the standard iOS share sheet.
Explains itself. A short About screen describes what the IDFA is, why it is resettable, and how you control access to it.

Made for developers testing ad frameworks, marketers validating campaigns, and anyone curious about their own device identifiers.

Privacy

The identifier is read on your device and shown to you. The app does not send it anywhere unless you copy or share it yourself. The app has no servers and no analytics. The privacy policy has the full details.

Contact

Questions or feedback: contact@alfredohdz.io

Apple, iPhone and App Tracking Transparency are trademarks of Apple Inc. IDFA Viewer is an independent app and is not affiliated with or endorsed by Apple.