SourceTree - Mac and Windows client for Mercurial and Git.
Working Copy - The powerful Git client for iOS
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.
SmartGit - SmartGit is a front-end for the distributed version control system Git and runs on Windows, Mac OS...
TortoiseGit - TortoiseGit is an easy to use client for the Git distributed revision control system.