Great potential, but sound won't record – Tapikeo HD - Create with your Kids their Picture Book, Storyboard, Soundboard and Audio Flashcards ! Review

This app sounds like it would be perfect for speech therapy, but it won't let me record sound for the cells. Tried to email customer service but it didn't work. Please help!
Review by rbnine2 on Tapikeo HD - Create with your Kids their Picture Book, Storyboard, Soundboard and Audio Flashcards !.