Partyfy allows you to collaborate on spotify's playlists without any software and to gamify a party by scoring votes & track add.
It's actualy totally free, with unlimited users & playlists, and includes lot of features like Autodj, playlist sharing, internal chat...
This is much more than just sharing a playlist. With Partyfy, you can let your guest choose what they want to hear, allow them to upvote or downvote tracks and tchat live. AutoDJ also helps to get rid of the awkward silences by automatically choosing new songs whenever your guests are too busy to keep on adding tracks. Would definitely use it again for my next party !
Sharing and managing a playlist during are very easy with Partyfy