GitPrime - GitPrime uses data from any Git based code repository to give management the software engineering metrics needed to move faster and optimize work patterns.
Diff So Fancy - Make Git diffs look good
Haystack Analytics - Ship faster and improve team satisfaction with engineering analytics powered by your Github data.
Working Copy - The powerful Git client for iOS
Gitential - Analytics for Git Repositories
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.