What are some alternatives?
When comparing Gitql and Working Copy, you can also consider the following products
GitStats - A local GitHub-like contributions calendar
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.
GVfs - Git Virtual File System (by Microsoft)
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
Git2Go - The Git client for iPhone and iPad you always wanted
Ungit - Web-based and intuitive UI for git.