Mac App Store is the simplest way to find and download apps for your Mac.To download SourceTree (Git/Hg) from the Mac App Store, you need a Mac with Mac OS X 10.6.6 or later. Learn More. Description SourceTree is the easy to use GUI for Mercurial and Git, made for your Mac! ✓ One tool for Mercurial and Git repositories ✓ Collaborate with Subversion servers too ✓ See your GitHub, Bitbucket and Kiln