BeatSense - Discover great music hand-picked by real people, in a single click. FREE and in real-time!
Liyo - Stream your favorite music live with friends 🎶
Twinjack - Stream Spotify music with anyone with just a link
CueBot - A better way to request for songs at a party 🎉
Heartbeat - Listen to music with your friends together, on Spotify
üWave - üWave is a self-hosted collaborative listening platform.