I like the presentation. Very easy to follow along in the beginning, but you kinda lose me at 1:59. I think you can do a better job explaining this. Really think that the phone view next to the website view is a great touch.

With todoist if you complete a task it crosses it out, which really looks great visually if you are checking off a list. maybe if you check one of the rows, finished column, it crosses out everything in that row.