RescueTime is a time tracker and productivity tool.

The RescueTIme app helps you manage the time you spend on your smartphone. It will track how much time you're spending on each app, which will give you valuable insight into how much time you're truly wasting on pointless stuff. It also enables you to do something about your time wasting habits. If you find yourself unable to resist the call of your phone, you can use RescueTime to set a screen lock that will make it impossible to use certain websites. It also has a goal tracker to help reinforce positive productivity habits.