[eep_social]

If the implication was that web fingerprinting has gotten really creepy too, then I agree. Unluckily, I don’t think I can do justice to the matrix of “depending on permissions” x mobile OS x valid but overly broad permissions in a comment. Apps can and do take anything you give them, active status, location, other installed apps, battery charge percentage, etc.

[scarface_74]

Location data is permission based and at least iOS has taken steps that prevent an app from seeing other installed apps.

There is also a battery status API for browsers. Safari doesn’t support it. But Android browsers do.