Quite simply, this app has the stream from every radio station, every talk show, everywhere. Unlike individual radio station apps where you only get one radio station's stream or iHeartRadio where you only get some radio stations...this has them all. Even stations you didn't realize were there, like HD2 side-channels, police band scanners, podcasts, and public and college campus stations. Search by radio station, format, host, team, or artist to find a the right station for you. If its streaming online, its streaming on TuneIn.
Also free on your computer: tunein.com