Pyro - Spotify music voting for parties
Party Play - Introducing Party Play. One playlist for multiple users.
klaep - music collaboration - klaep is a social music collaboration network for musicians
MisterJack - Make and share playlists
Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
Madsounds - It’s like Discover Weekly, but daily.