Gitify - GitHub Notifications on your desktop.

UptimeRobot - Free Website Uptime Monitoring

Meteorite - Smarter GitHub notifications.

StatusPage.io - StatusPage.io is the best way for web infrastructure, developer API, and SaaS companies to get set up with their very own status page in minutes. Integrate public metrics and allow your customers to subscribe to be updated automatically.

Neat.run - Neat puts SaaS notifications in your menu bar. Streamline your code review and ship with ease. Preview, triage, and jump to issues in one click or keystroke.

Freshworks - Delight your customers, from wherever you are