Apps are using "silent notifications" to track you after you uninstall them

A new generation of commercial trackers from companies like Adjust, AppsFlyer, MoEngage, Localytics, and CleverTap allow app makers like Bloomberg, T-Mobile US, Spotify Technology, and Yelp to covertly track when you've uninstalled apps: the trackers send periodic "silent notifications" to the apps you've installed, and if the apps are still installed, they ping the trackers' servers. If they don't hear back from you, they assume you've uninstalled the apps. Read the rest