> quite powerful and forces lots of safeguards about how exactly data can be used.
Apple recommends apps based on other apps I've downloaded. So does Google. Apple recommends music based on other music I've played. So does Google. Apple recommends books and movies as well based on similar data. So does Google. Apple keeps track of every placed your Apple devices have been. So does Google. Apple doesn't share this data. Neither does Google.
If you don’t enable those things (which are not automatically enabled) then Apple does not know the location of your phone.
The iPhone certainly does keep track of where it has been. There was even a scandal about it a few years back. It may not upload it to Apple's servers yet, but that's only a matter of shifting strategy and a software update away.
It says encrypted and cant be read by Apple, who knows, this data creeps me alone.