Visualify - Visualize your top artists on Spotify
PartyWith - Connecting people who love to party - anytime, anywhere.
SYQEL - Bring your music to life
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Kaleidosync - Kaleidosync is an all-in-one Spotify music visualizer that is all set to deliver a top-notch music experience with real-time support.
Party Play - Introducing Party Play. One playlist for multiple users.