Slack-News - Read news from multiple sources within Slack by just typing
HackerWeb - A simple and readable Hacker News app
Slack Platform News - News and updates from the Slack Platform direct to your team
HNBuddy - An elegant iOS client for Hacker News ✨
Slack News Feed - Get the top posts from every Slack chat you're in.
Slack-HN - Read Hacker News right from Slack