App tracking alert in iOS 13 has dramatically cut location data flow to ad industry

https://www.reddit.com/r/privacy/comments/eocxm9/app_tracking_alert_in_ios_13_has_dramatically_cut/

https://appleinsider.com/articles/20/01/13/app-tracking-alert-in-ios-13-has-dramatically-cut-location-data-flow-to-ad-industry