GitHub Reader - A quick way to browse GitHub issues and pull requests.
CurrentWare BrowseControl - BrowseControl web filtering software blocks websites based on URLs and categories. Policies can be customized for each user, department, or OU. Includes other features such as an app blocker, port filter, and download/upload blocker.
Shrink for Github - A macOS app for your Github issues
HomeGuard Activity Monitor - Monitor and block Web activity, keystrokes, limit gaming time and record screenshots.
Codetree - You can manage your entire development process through GitHub.
MobileFence - Parental controls for Android devices.