This app helped me learn and gain confidence in my mathematical skills. One of the most helpful features I think it has is, when you make a mistake, it tells you how much money you counted. (Ex; you were supposed to give $14. 75 but you gave $13. 75 ). This helps you figure out, without being told, what your issue may be when counting money (be it, misreading a number, missing a coin, or over estimating, and etc).