I am currently a iPhone apps developer and trying to learn the mechanism of generating the audio impulses by extracting the current ipa solutions and github solutions
When using Hopper to extract , only recompiled and incomplete assembly codes are generated. We cannot see any objective classes for further exploration .
Are there any alternatives to achieve this aim ?
There are such things as decompilers, but not sure if there's one for iOS/Objective-C. Anyway you won't get back the original source, variable names, comments, etc. So it's still a slog.
Instead of reversing someone's app why not ask "how to" questions on stackoverflow? ;-)
Also, you can see the classes defined in the program, try nm.
Nope, the IPA file doesn't contain any source code. Which is a good thing, I think most developers want privacy with their material.
来源：https://stackoverflow.com/questions/23210173/is-it-possible-to-reverse-engineering-to-get-the-original-source-code-from-ipa