Cannot listen in background.

I can only give 3 stars, because although it does have a humongous amount of stations, you cannot listen to this app in the background as advertised.

Edit: I am revising my rating to 5 stars. It does operate in the background as advertised. You have to hit the small box on the top right. I guess I spoke too soon.

Boxhead42 about Radio Scanner (Live police & music stations)