GitHub + Slack Integration - Full visibility into your GitHub projects right inside Slack
GitHub Contributions - All your GitHub contributions in one image
Cryotos - #1 Maintenance Management Software
GitWrapped - View/Share how you contributed to Github over the years
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
GitHub Metrics - Customize your profile with various plugins and metrics