SubmitHub - SubmitHub makes it easy to contact music bloggers, Spotify playlisters, record labels and more. We give you all sorts of statistics and ways to filter who to send your music to.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Spotalike - Spotify playlist with similar songs, according to Last.fm
SpotMenu - Spotify and iTunes in your macOS menu bar
Surface Studio - A brilliant screen for your ideas, from Microsoft
MySphera - When music promotion met micro-influencers