I'm pretty sure 3rd party apps don't have access to that data anyway...

Yes that exists, but you are wrong about the permission requirement. CLVisit is meant to be a lower power alternative to always tracking, but still requires the same “always” permission: https://developer.apple.com/documentation/corelocation/getti...

iOS has access to these, third party apps do not.

I didn't know of that, thanks a lot for sharing!. Reminds me of the Google Location history on Android devices that shows you scaringly accurate where you went during your day.