I have been setting up a Hudson continuous integration (CI) build system for my Objective-C iPhone projects (iOS apps), and have compiled a varied list of tools that can be used to analyze my projects during a build:
Clang static analyzer: free, up-to-date stand-alone tool that catches more issues than the version of Clang included with Xcode 4. Active project. -- visit http://clang-analyzer.llvm.org
Doxygen: free documentation generation tool that also generates class dependency diagrams. Active project -- visit http://www.doxygen.nl
HFCCA (header-free cyclomatic complexity analyzer): free Python script to calculate code complexity, but without header files and pre-processors. Supports output in XML format for Hudson/Jenkins builds. Active project. -- visit http://code.google.com/p/headerfile-free-cyclomatic-complexity-analyzer
CLOC (count lines of code): free tool to count files, lines of code, comments, and blank lines. Supports diffing, so you can see the differences between builds. Active project. -- visit http://cloc.sourceforge.net
SLOCcount (source lines of code count): a free tool to count lines of code and estimate the costs and time associated with a project. Does not appear to be active. -- visit http://sourceforge.net/projects/sloccount and http://www.dwheeler.com/sloccount
AnalysisTool: free code analysis tool that measures code complexity and also generates dependency diagrams. Not active. Does not seem to work with Xcode 4, but I would love to get it working. -- visit http://www.karppinen.fi/analysistool
