Whystle - Get an alert when products you use are recalled.
Spotify.me - Beautiful analytics on your Spotify listening habits 🎧
Product Haunt - Browse the Product Hunt graveyard 👻
Magic Playlist - Get the playlist of your dreams based on a song
Guess The Product - Provide quick, valuable feedback by guessing a product based on its landing page. You'll get max 40 seconds and 140 characters. Help out others and they'll return the favor.
SpotMenu - Spotify and iTunes in your macOS menu bar