How to stop advertisers from tracking you across the internet

What is an Advertising ID?

Advertising identifiers – Android’s Advertising ID (AAID) and Identifier for Advertising (IDFA) on iOS – enable third-party advertising by providing device and activity tracking information to advertisers. The advertising ID is a string of letters and numbers that uniquely identifies your phone, tablet, or other smart device.

On Android

With the release of Android 12, Google began allowing users to delete their ad ID permanently. On devices that have this feature enabled, you can open the Settings app and navigate to Security & Privacy > Privacy > Ads. Tap “Delete advertising ID,” then tap it again on the next page to confirm. This will prevent any app on your phone from accessing it in the future.

On iOS

Apple requires apps to ask permission before they can access your IDFA. When you install a new app, it may ask you for permission to track you.

Select “Ask App Not to Track” to deny it IDFA access.

To see which apps you have previously granted access to, go to Settings > Privacy & Security > Tracking.

In this menu, you can disable tracking for individual apps that have previously received permission. Only apps that have permission to track you will be able to access your IDFA.

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