Consider going after the education market. There are no simple student-oriented to-do lists with access by teachers.
I've tried a lot of task managers, but kept going back to paper. This one finally works the way I think. I haven't seen anything else that does scheduling this way.
I always was a "list" person, never left the house without a notebook and pen.
Now I use my phone. Very easy to use and convenient.
Haven't found a better way to track how booked I am for the week. Looks nice, though option to change the theme would be nice
I work for myself and keeping strict 9-5 to manage boundaries *sounds* good but it's not practical. It also kinda defeats the purpose of being self employed (the flexibility). I've been really pleasantly surprised how well this app works for tracking all the things that I have to do. And even helping align time-spent with priorities. Its obvious right away if I'm spending too much time on any one thing... or not actually getting much done.