You are correct that users can disable it but incorrect to say it is app specific: https://developer.apple.com/documentation/adsupport/asidentifiermanager/1614

You are correct that users can disable it but incorrect to say it is app specific: https://developer.apple.com/documentation/adsupport/asidentifiermanager/1614151-advertisingidentifier https://developer.apple.com/documentation/adsupport/asidenti... You are thinking of “identifierForVendor”: https://developer.apple.com/documentation/uikit/uidevice/1620059-identifierforvendor https://developer.apple.com/documentation/uikit/uidevice/162...