Notational Velocity - Notational Velocity: modeless, mouseless Mac OS X note-taking application
Gitscout - A beautiful Github Issues experience for macOS
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Shrink for Github - A macOS app for your Github issues
Notational - Notes at the speed of thought
GitHub Reader - A quick way to browse GitHub issues and pull requests.