Ambiance is a great simple app. It's function is to replicate a white noise or other noise machine. Great if you usually travel with one, you can skip it and use this instead. I know a couple people that use these type of devices while working to block out office noise without distracting music or talk radio.
Ambiance features are simple -- select the sound you want to use and press the noise button to start it. You can change the sound at anytime by changing the selection on the main page.
Sound selection is very good and of decent quality. Can't expect too much I guess, it's noise after all. You can also set a timer and the sound will stop after the selected amount of time.
A simple app, indeed. But it does what it says and does it well at a great price. A 99 cent gem!