What are some alternatives?
When comparing Mercurial SCM and Working Copy, you can also consider the following products
Atlassian Bitbucket Server - Atlassian Bitbucket Server is a scalable collaborative Git solution.
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.
Visual Studio Team Services - Visual Studio Team Services (VSTS) provides unlimited Git hosting, cloud build for CI, agile planning and continuous delivery.
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Perforce - Self-hosted Version Control Software
Git2Go - The Git client for iPhone and iPad you always wanted