Heartbeat - Listen to music with your friends together, on Spotify
PeekaBeat - Turn your selfie into Spotify playlist 🎶
Liyo - Stream your favorite music live with friends 🎶
Playlist Machinery - Tools that help you create & organize your Spotify playlists
TuneMeet - Chat with people who are listening to the same song
Lazyset - A Spotify playlist mixing Facebook Messenger bot