Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Magic Playlist - Get the playlist of your dreams based on a song
AprilZero - A personal dashboard with a lot of metrics and an amazing UI
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Sherbit - Sherbit lets you visualize stats on your life based on the services, devices and apps you use.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧