This is kind of interesting if you're into the technical aspects of radio or if you're on a journey somewhere and are looking for something that comes in. It's called The RadioLand App and it was designed to allow users to find out which stations come in the best and where they're located - all on your Android or iPhone. Keep in mind it's only for FM. 

The guy who designed it as sort of a hobby has made sure that it includes not only the U.S., but also Canada and other countries.

"With the data we’ve been able to amass, RadioLand handles not just listings in the United States, but Canada, Mexico, Bermuda and the Caribbean, with sights set on Europe next. The list and map of stations receivable for a location can be shared out as a PDF file."

"...RadioLand pulls in updated copies of the FCC database each night, and Canada’s FM database through ISED as it is updated, and that is the technical data for the stations you see. Format and slogan data, along with station data from all other areas."

The app is free and can be found here.

Explore the RadioLand App story on RadioWorld.com

Some samples: