I was using ToggleTrack and other time tracking tools before. But looking at this, it is more user friendly, the UI is not a daunting place to learn and use the tool. I also like that you are giving someone reminders and achievements which can give signals to the brain and can help you create better habits. You can do most of the things you see here in Google Calendar, but honestly, why make things harder? BeforeSunset is easier than other apps.