Stay focused while using your Android. By default, counts down 10 minutes for facebook.com in Chrome per day.
Currently can track the following native apps: Facebook, Snapchat, Pinterest, Chrome, Materialistic. Let me know if there are more you want.
Download the demo apk to your phone and install.
Once the app opens, tap "Tap here to enable in settings" > "Focusr" > switch on.
If you want to track native apps, check them off in the preferences.
Uses the Android Accessibility API to watch which apps open and close, and for Chrome, what URL is in the search bar.
It's a fairly scary permission to grant. I'm open sourcing this so you know the app isn't sending your data anywhere.