Cornerstone
Used by 3 peoplecornerstone.assembla.com ↗

“I recently discovered and fell in love with Zenna-Ware's Cornerstone as a Mac SVN manager.”
Glenn Fleishman Interview, Editor (The Magazine), podcaster (The New Disruptors) · via Uses This 
“We use Cornerstone/SVN for source control.”
Theodore Gray Interview, Co-founder (Wolfram Research), element collector · via Uses This