Radio Royale is described as '- Listen to 1000's of AM/FM stations for free - Watch the music video for the song that's playing - Chat with others who are listening to the same station - Play in the background or enjoy fullscreen album covers - Create your own list of favorites to switch stations'. There are more than 100 alternatives to Radio Royale for a variety of platforms, including Online / Web-based, iPhone, Android, iPad and Windows. The best alternative is Spotify, which is free. Other great apps like Radio Royale are Last.fm (Freemium), Deezer (Freemium), Pandora (Freemium) and gPodder (Free, Open Source).
Last.fm is a music community website that offers personalized internet radio, using a recommendation system called "Audioscrobbler" to build a detailed profile of users based on their music tastes and interests.
Deezer is an Internet-based music streaming service. It allows users to listen to music content from record labels including EMI, Sony, Universal Music Group, and Warner Music Group on various devices online or offline.
Pandora Radio is a free (ad-supported) internet radio founded in 2000. Using the Music Genome Project, over 400 attributes of songs are analyzed in order to personalize radio stations from music you like.
gPodder downloads and manages free audio and video content ("podcasts") for you. Listen directly on your computer or on your mobile devices. Available for Linux, FreeBSD, Windows, Mac OS X and mobile devices like the Nokia N810, N900 and N9.
With TuneIn Radio Mobile, your mobile device becomes the radio. Take your stations and programs with you wherever you go. Listen to Pearl Jam on KROQ while working out; listen to This American Life on NPR while on a road trip.