What are some alternatives?
When comparing Ungit and GitHub Desktop, you can also consider the following products
SmartGit - SmartGit is a front-end for the distributed version control system Git and runs on Windows, Mac OS...
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
SourceTree - Mac and Windows client for Mercurial and Git.
tig - TIG Software Updates & Expansions. Download the most up-to-date, innovative software solutions for your TIG welder instantly to a memory card for enhanced performance.
git-cola - git-cola is a powerful GUI for git, a distributed revision control system.
Atlassian Bitbucket Server - Atlassian Bitbucket Server is a scalable collaborative Git solution.