Error – A Story Before Bed Recordable Children's Books Review

Anthonytechhelp here. The recording playback doesn't have any volume for me. Is anyone able to help? The only other app I've had an issue with this is an Italian to English translater (with proper pronunciation). And yes my volume was up. I'd loveit if the creators of this could work out this bug. My little sister depends on it. Grazie!
Review by AnthonyTechHelp on A Story Before Bed Recordable Children's Books.