Rocketgraph - Rocketgraph is an open-source drop in replacement to Firebase, except it's much better.
Popsters - Analyze your social media pages and spy on your competitors
Discover on Demand - Just like Spotify's Discover Weekly, but whenever you want.
500 Streamers - A forever changing list of the Top 500 streamers on Twitch
Plug - Lightweight OSX player for Hype Machine
Pentos.co - Pentos the TikTok analytics platform.