For the record, this was just one of the smallest projects I could think of to learn a new technology. I think the space sucks but that's largely because everybody does exactly the same thing. It's kind of funny that I couldn't bring myself to work on something that stale even if it was just for me to see.
You assign a due date and a dollar amount punishment when you create a todo list or task. When you fail to complete your tasks on the due date, your account is charged the punishment amount.
"How do you verify that the task has been completed?" you might ask.
You don't. If users "cheat" then they're just losing out on the motivation service, otherwise you get the motivation required to do the task on time.
Be sure to read the app description before you download, so you know how to use it correctly. It's simple, but really gets you motivated to get things done on time.