Also an app can observe things while in the background (with a cat and mouse game on how much vendors allow)
And for broaden the tracking they can still open the browser from the app transferring some unique id, thus tying browser cookies to the app user.
Also an app can observe things while in the background (with a cat and mouse game on how much vendors allow)
And for broaden the tracking they can still open the browser from the app transferring some unique id, thus tying browser cookies to the app user.