Sound on app

I just purchased the app but have no sound. I have checked my volume control and it’s on high. Surely the app has sound with the tutorial etc. can someone help me?

One condition of not playing back sound is if you have another app running in the background playing sound already. In this situation we decided not to play back sound. You also may check the sound preferences in the infos panel. Here you can switch sounds on and off, but since you just purchased the app sound should be on.