Lacking content.... Just get one of the free alternatives
I have downloaded a half dozen free alternatives vest that have more sound options to than the this. Its basically $4 for one looping sound effect and an overwhelming amount of ads asking you to spend extra money for more. I dont hate IAP, but this app feels like it is missing content, so the IAP makes me feel like I am being exploited.
DaneClark about
Away ~ Nature Sounds to Sleep, v1.0.4