When you make people pay they should get the full product, I will go so far to say this looks unfinished.
Update: Looks better and finally runs in the background. Pause/play button really doesnt make it any better. I am sorry to say one final thing.
The storm display (for the lack of a better name) is really nothing to brag about in the description. I find it misleading and should not be considered a main attribute. It should at least have a function so you can see it in full screen or in sleep mode. If you could apply that, I think this app could really shine.
SkillSwiper about White Noise Storm