Working Copy - The powerful Git client for iOS
Git2Go - The Git client for iPhone and iPad you always wanted
Diff So Fancy - Make Git diffs look good
GitKraken - The intuitive, fast, and beautiful cross-platform Git client.
CodeHub - CodeHub is the most complete, unofficial, client for GitHub on the iOS platform.
Sublime Text - Sublime Text is a sophisticated text editor for code, html and prose - any kind of text file. You'll love the slick user interface and extraordinary features. Fully customizable with macros, and syntax highlighting for most major languages.