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In case of Apple, the ID isn't shared between apps though. Every app now gets their own ID and even that can be reset across all apps in the privacy preference
by pilif 13y ago
In case of Apple, the ID isn't shared between apps though. Every app now gets their own ID and even that can be reset across all apps in the privacy preference pane.
In earlier versions of iOS, people were using the device UUID which allowed tracking across apps, but using the UUID isn't possible any more, so tracking is now only possible within one app.
- dunham 13y agoJust to clarify, in the newer iOS versions there are two classes of identifier that replace the UUID: identifierForVendor is not shared across vendors, but it is shared across apps from the same vendor. identiferForAdvertising is shared across all apps, but it is not shared between devices and can be reset at any time by the user. (I think the user can suppress it altogether, but I'm not 100% sure.)