Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
Gitscout - A beautiful Github Issues experience for macOS
Visual Studio Code - Build and debug modern web and cloud applications, by Microsoft
GitHub Reader - A quick way to browse GitHub issues and pull requests.
Xcode - Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.
Codetree - You can manage your entire development process through GitHub.