Songstack - Swipe to discover new music for Spotify
Heartbeat - Listen to music with your friends together, on Spotify
BandNext - Discover bands that sound similar to artists you already love with BandNext. A single click saves your results to a Youtube playlist.
Liyo - Stream your favorite music live with friends 🎶
22tracks - DJ curated Spotify playlists on iOS
Parallel - Listen to music with friends over Spotify at the same time