While developing a tweak, you may find these tools useful to analyze how iOS and apps work, and to find where to interpose your functionality. Static analysis blacktop/ipsw blacktop's ipsw tool is an absolute juggernaut, capable of doing ( __to some extent__ ) what every single tool on this page can do (and more). It's written in golang and works on macos, and to some extent, linux. Class/Metadata