Heartbeat - Listen to music with your friends together, on Spotify
Songlink - Share music with anyone.
Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
aux.app - A free web-based music platform to play music from other popular online streaming services.
Join My Playlist - Listen to music live together with your friends in Spotify.
humit - A social networking app for music sharing and discovery.