My friend is currently developing a todo app and interestingly enough is getting some users even though things like Trello exist and it boils down to two things

My friend is currently developing a todo app and interestingly enough is getting some users even though things like Trello exist and it boils down to two things: -Dogfooding. He even organised his wedding using the damn thing. -Talking face to face with people who are as dissatisfied with incumbent products as he was. You've got to have a problem that really bothers someone in order to get them to use your solution.