Bizness Apps - Create your own app or become a reseller and build apps for others
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Siberian CMS - Siberian is an Open-Source and Free App Maker. Unlimited Push Notifications. Unlimited features. Fully Customizable. Download it and build your own app now!
SourceTree - Mac and Windows client for Mercurial and Git.
Dropsource - Mobile development platform for building native iOS & Android apps
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.