Magic Playlist - Get the playlist of your dreams based on a song
DJI Fly - DJI Fly is an app that provides you an intuitive interface and helps you to discover GEO zones and scenic flight locations nearby you effortlessly.
Spotalike - Spotify playlist with similar songs, according to Last.fm
Bragi - Wireless, H2O resistant, noise-canceling in-ear tracker.
Spotify - Map shows when two people play same song at same time
Apple - Available on iOS