Pusher Beams - Send push notifications programmatically at scale
HackerWeb - A simple and readable Hacker News app
PushOwl - Re-engage website visitors with push notifications
Boreal - A Hacker News iOS app
Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
Digest - Hacker News client for Slack