Don’t waste your money!
This app is made for young learners who are learning coin names and values but the user must read the questions; therefore, the user must have a parent with them to use the app. If the child is going to have a parent working right with them, they might as well use real coins and no electronic/app. When the child gets and incorrect answer, they hear “ohh, you made a mistake, the correct answer in green.” Again this is meaningless to a non reader/beginner reader.