They ABSOLUTELY do.

They track everything about the device - and the user has almost no control over it.

Sure, they aren't tracking what you're doing INSIDE the FB app. But they track every time you use it, where you use it, the context that led to that usage, etc.

> Sure, they aren't tracking what you're doing INSIDE the FB app. But they track every time you use it, where you use it, the context that led to that usage, etc.

So does Facebook (as much as they're able and allowed to), being fair.

FB can't track every time you open Pinterest on an iPhone.

Apple can and does.

FB absolutely can and does correlate events and various metadata sent by the "Facebook SDK" spyware which litters most mainstream apps. ATT does not prevent that because the fingerprint it collects, combined with your IP address is sufficient to link all the separate instances of the SDK by correlating enough events.

To be clear, I'm not disagreeing with that. I'm just saying that individual applications can track those metrics for their own properties.

And, to be fair, while I don't want Apple tracking that data (however useful/useless it may be), I wouldn't want Facebook tracking it either.

Every (smart) merchant uses information from its interaction with its customers to target better. What overall law do you want the government to pass?