Codetree - You can manage your entire development process through GitHub.
Shrink for Github - A macOS app for your Github issues
Fire bot - Let your whole team create GitHub issues via email 🔥✉️️
PullReminders - Review and release pull requests faster with Slack reminders and metrics.
Huboard - HuBoard is built from the ground up using the GitHub public API.
Gitify - GitHub Notifications on your desktop.