appledoc
Try appledocappledoc Overview
An Objective-C API documentation generator that creates Apple-like source code documentation from specially formatted source code comments. The comment formatting required is easy to follow and very readable, in fact your comments are probably already in the right format (you are writing comments, right?). The output is visually appealing documentation in the form of HTML as well as a fully indexed and browsable Xcode documentation set. Since Xcode 5, there is no official support for 3rd party docsets but tools like Docs for Xcode help to fix that.
