I recently found out about a tool called cycript that apparently does runtime analysis of binaries written with Objective-C. I have a Mac OS X binary that is compiled as x86_64 and is intended to run on Intel Macs. I know cycript is intended to for iOS applications but I wouldn't mind using it on this binary to poke around and see what is going on inside the binary. Most instructions I see for cycript state to start off with UIApp, and then investigating further objects from there.
My problem is when I try to investigate UIApp with cycript I get the following error message,
ReferenceError: hasProperty callback returned true for a property that doesn't exist.
I am assuming I am getting this error message because the binary does not have a UIApp class / method in it because it is a Mac OS X binary and not an iOS.
Where would be a good starting point for using cycript with a Mac OS X binary?