This app was working perfectly for a while and my kids were learning and having fun. I especially love the multilingual options because my children are bilingual. But recently one portion of the app stopped working (specifically in the bouncy ball part, it doesn't recognize that the right number of balls has been chosen and it just freezes there and suddenly turns off. This happens on my iPad and my phone.) so I'm frustrated with that. Otherwise, I love this app. Hopefully these bugs will be fixed soon.