Now Apps Can Track You Even After You Uninstall Them

If it seems as though the app you deleted last week is suddenly popping up everywhere, it may not be mere coincidence. Companies that cater to app makers have found ways to game both iOS and Android, enabling them to figure out which users have uninstalled a given piece of software lately—and making it easy to pelt the departed with ads aimed at winning them back.
Read more: https://www.bloombergquint.com/businessweek/now-apps-can-track-you-even-after-you-uninstall-them?source=Snapzu