Playlistful - Collaborative playlists for parties!
Magic Playlist - Get the playlist of your dreams based on a song
TurnUp - Live & shared playlists 🎶 made simple ✅
cueued - A service to demauxratize your Spotify music
Party Play - Introducing Party Play. One playlist for multiple users.
CueBot - A better way to request for songs at a party 🎉