Plant - Version control app and plugin for Sketch
GitHub Desktop - GitHub Desktop is a seamless way to contribute to projects on GitHub and GitHub Enterprise.
Kactus - Design version control without changing your tools
Git - Git is a free and open source version control system designed to handle everything from small to very large projects with speed and efficiency. It is easy to learn and lightweight with lighting fast performance that outclasses competitors.
Abstract - A secure, version-controlled hub for your design files
Mercurial SCM - Mercurial is a free, distributed source control management tool.