The app is fantastic...until you close the app and come back to continue working. I am a teacher and deployed this app the roughly 35 students. Every single project was deleted and says that the project is downloading but never reappears. This app is a great min mapping tool that is easy to use and learn. Sadly, it is utterly worthless if all your work disappears each time you close the app. The only flaw, but it is a deal breaker.