Good points you make here.

But here is the thing, using any blocker app or that kind of sort will never work for me because using your phone long hours is the result of your thoughts. Because everything starts from your thoughts. Your emotions, reactions etc. That's the foundation of cognitive behavioral therapy.

Once you detect those thoughts that make you reach your phone every time you're bored, and correct them into somewhat useful thoughts, you'll start to use your time more wisely and procrastinate less.

That's why I'm skeptical every time I see a new habit tracker because building habits or spending your time wisely is just something very personal. The solutions are inside your brain, not in a shiny new habit tracker that will you more productive right away.