GitHub Contributions - All your GitHub contributions in one image
Contributions for GitHub - Show your GitHub contributions graph on your iOS Devices
GitHub Metrics - Customize your profile with various plugins and metrics
GitHub Visualizer - Enter user/repo and see the project visually
GitHub Gardener - Daily, automated commits that turn your GitHub green
JANDI - JANDI is a group-oriented messaging platform with an integrated suite of collaboration tools that is tailor-made for workplaces in Asia.