Gitscout - A beautiful Github Issues experience for macOS
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.
GitHub Reader - A quick way to browse GitHub issues and pull requests.
Gitify - GitHub Notifications on your desktop.
Codetree - You can manage your entire development process through GitHub.
GitPigeon - GitHub notifications delivered to your Mac