classdump-dyld cydia tweak it`s a command line tool that dumps headers from binaries, bundles, frameworks etc.
You don’t need to extract the binary first in order to classdump it.
It also offers recursive dump of whole directories options with a nice output.
It works on iPhone and Mac, all architectures, including arm64
This is a developer console utility, you may access it using MobileTerminal or remote SSH. No icons are added to your device homescreen.