Corner Timer: gently make you feel guilty on time-wasting apps

It’s simply an overlaying timer displaying on how much time you spend using the apps. There are tracking apps like App Usage, but this one: 

• displays constantly (not hidden in the notification panel), so every time you have a guilt, you can glance at it to make you feel more guilty to quit
• is unnoticeable (not interrupting with sound and popup) when you’re in the flow

Features:

• Count how much time spent in the current session (upper timer)
• Count how much time spent in the day (bottom timer)
• Write log

Download link (require to install Tasker first)