What are the options to decompile ARM (iOS) to Objective-C using IDA?
I've been looking into the REobjc module (https://github.com/duo-labs/idapython), but it can only handle x64 code.
Are there other plugins that may decompile the ARM?
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I have not tried the following, but have heard of them (so add a comment about how well it works if you do try one!)...
There's the opensource snowman decompiler. It has been around for a few years now. Its website says it supports ARM and is available for radare2, x64dbg, multiple versions of IDA Pro, and as a standalone application.
Another opensource one is RetDec. Looks like it was just released late last year, but is from a well regarded AV company (Avast) and supposedly has been in development and use privately for several years.
I've also heard of the commercial Hopper product, which specializes in macOS executables, but not sure how good the built-in decompiler is.