Don't buy it, it doesn't work! I wish this app worked, but none of the developers' apps we have function anymore. It's tragic, as my kid LOVES them. There's another version of this out there that's pretty close, down to similar art (different developer), and some parts are better, some worse. When this app worked, it had some interface issues in the it was very pernickity about which area of the screen to tap on, and the vision test makes no sense, which kept it from 5 stars.