The app was unresponsive: clicking on the shapes & letters did nothing except make them wiggle w/ music. Still not sure how you get to practice a letter. At first I thought it was because I hadn't subscribed. I subscribed. Same issue. I unsuscribed. For less than 5 USD one time fee, there are some fantastic letter tracing apps. At this price, the expectation is higher. Basic issues like this are a no no. I'm open to coming back if value can be demonstrated above and beyond the 5 USD apps.