SpotMenu - Spotify and iTunes in your macOS menu bar
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Stapp - Stapp is a powerful tool that allows you to block all the tracks, artists, and albums that you do not like on Spotify just by adding them to the blacklist.
Listen - A smart phone number
Surface Studio - A brilliant screen for your ideas, from Microsoft
Spotalike - Spotify playlist with similar songs, according to Last.fm