Visualify - Visualize your top artists on Spotify
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.
SYQEL - Bring your music to life
Spotalike - Spotify playlist with similar songs, according to Last.fm
Kaleidosync - Kaleidosync is an all-in-one Spotify music visualizer that is all set to deliver a top-notch music experience with real-time support.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧