google-activity-recognition-android-permissions-shazam-soundhound-apps-privacy-a8028136.html

Your phone can reveal all of your physical activities to Google and the apps you use. The sensors inside it can monitor, understand and disclose your real-world movements, based on what's happening to the phone itself. It can tell, for instance, if you're standing up, or if you've just lifted your phone off a desk, or if you've started walking. An Android permission called "Activity Recognition", which was discussed on Reddit and highlighted by DuckDuckGo last week, makes it much easier for developers to work out what you're doing at any one time. Shazam and SoundHound request the permission, but it isn't completely clear why.