Sorry for creating an issue, I just wanted to let you know that this actually works fully on iOS. Unlike flexdecrypt, it doesn't require spawning the executable, and after a couple of tests to confirm this works, I've been able to decrypt + install the final ipa's with no issues.

I created a repo with my build configuration and a pre-compiled binary under releases if you wan't to try this out and maybe integrate iOS support into the main repo. https://github.com/dlevi309/appdecrypt-ios

iphone567:/tmp root# ./appdecrypt /private/var/containers/Bundle/Application/90F191CD-4192-45A0-9B53-BF1E15098F3E/ /tmp
Success to copy file.
Dump /private/var/containers/Bundle/Application/90F191CD-4192-45A0-9B53-BF1E15098F3E/neighborhood.app/neighborhood fail, because of mmap fail with Invalid argument
Dump /private/var/containers/Bundle/Application/90F191CD-4192-45A0-9B53-BF1E15098F3E/neighborhood.app/PlugIns/NotificationService.appex/NotificationService fail, because of mmap fail with Invalid argument

too many app decrypt failed!

I used precompiled binary from https://github.com/paradiseduo/appdecrypt/releases/download/2.1/appdecrypt_arm64_iOS.zip

I tried to decrypt IPA "JW library" but it occurred error. Here is what I done:
1.rename .ipa to zip and unzip it
2.mkdir on Desktop and name it "payload"
3.decrypt app where in unzipped floder

here is error message I received:

When fed with a universal binary like this:

% file Shadowrocket
Shadowrocket: Mach-O universal binary with 2 architectures: [arm_v7:
- Mach-O executable arm_v7] [arm64]
Shadowrocket (for architecture armv7):	Mach-O executable arm_v7
Shadowrocket (for architecture arm64):	Mach-O 64-bit executable arm64

The release version will get a segmentation fault:

zsh: segmentation fault  ./appdecrypt "/.../Shadowrocket.app" 

The debug version trips over an assertion:

appdecrypt/dump.swift:112: Assertion failed
zsh: trace trap  .build/debug/appdecrypt "/.../Shadowrocket.app"

where the code at line 112 is:

    assert(header.pointee.magic == MH_MAGIC_64)

This is likely to be the reason of #18, too.

I don't know the exact mechanism of encryption with a universal binary. I guess there should be some implementation to automatically extract the matching architecture only, or just throws an error message warning user about the existence of universal binaries.

2.0版本是可用的，main分支自己编译的版本也是可用的，2.1版本无法运行😅

When I run ./build-macOS_arm.sh I get the following error:

error: terminated(1): /usr/bin/xcrun --sdk macosx --show-sdk-platform-path output:
xcrun: error: unable to lookup item 'PlatformPath' from command line tools installation
xcrun: error: unable to lookup item 'PlatformPath' in SDK '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'

~bug

./appdecrypt /Applications/test.app /Users/us/Downloads/

After this operation, an exception was found, and ctrl+c was used to abort. However, it was still found that more than half of the download directory files were lost.

error: terminated(72): /usr/bin/xcrun --sdk macosx --find xctest output:
xcrun: error: unable to find utility "xctest", not a developer tool or in PATH

Macos version: 11.5.1
device: macbook pro with apple silicon(M1)
how to fix it? thx!

I just bought an M1 Mac air just to decrypt IPA apps. I installed Xcode on it (version 13.0, the latest available for macOS 11.3). When trying to run the build-macOS_arm.sh script, I get the following error:

/Users/n/appdecrypt/Sources/appdecrypt/dump.swift:191:18: error: value of optional type 'UnsafeMutableRawPointer?' must be unwrapped to a value of type 'UnsafeMutableRawPointer'
            free(base)
                 ^
/Users/n/appdecrypt/Sources/appdecrypt/dump.swift:191:18: note: coalesce using '??' to provide a default when the optional value contains 'nil'
            free(base)
                 ^
                      ?? <#default value#>
/Users/n/appdecrypt/Sources/appdecrypt/dump.swift:191:18: note: force-unwrap using '!' to abort execution if the optional value contains 'nil'
            free(base)
                 ^
                     !

How can I fix this ? Thanks !

Running on iOS (Procursus bootstrap) results in this error occurring:

iPhone:~ root# appdecrypt /var/containers/Bundle/Application/6EAF497A-E921-4BB7-9006-F7FB6D813003/ ./
Success to copy file.
Dump /var/containers/Bundle/Application/6EAF497A-E921-4BB7-9006-F7FB6D813003/QQNews.app/QQNews fail, because of encrypted fail with Operation not permitted

I was able to successfully use appdecrypt on my m1 mac but the output binaries are still encrypted anyway!
I used otool to check and cryptid is still 1.

Dump /var/containers/Bundle/Application/AA24AA4E-DF06-4D35-B314-0B120A7DE876/XXX.app/XXX fail, because of mmap fail with Invalid argument
other framework Success.
Why? How to do?

This is how I have done it.

1. Got an IPA from my iPhone using iMazing
2. Renamed it to a .zip
3. Decompressed the zip file.
4. Ran the command: appdecrypt % ./appdecrypt /Users/madstsk/.myWirdFiles/sideload/HCR2/Payload/hcrwc-iOS.app /Users/madstsk/.myWirdFiles/sideload/HCR2-decrypted.app
5. Got this output: zsh: segmentation fault ./appdecrypt /Users/madstsk/.myWirdFiles/sideload/HCR2/Payload/hcrwc-iOS.app
   I have tried to chmod -R 777 the parentfolder.

如题，时间过长指30分钟。
Mac信息：
MacBook Air (M1, 2020)，macOS Big Sur 11.5.2;
IPA信息：
明日方舟，版本1.5.60，来源：借由 Apple Configurator 2 下载的适用于 iPhone 的 IPA 文件，MacO文件大小：159.6MB；
Appdecrypt 安装方式：
通过 Release 界面下载，解压后置于/usr/local/bin
终端界面如下：
Last login: Sat Aug 28 21:15:40 on ttys000
yy@YYdeMacBook-Air ~ % appdecrypt /Users/yy/Desktop/Arknights/Payload/arknights.app /Users/yy/Downloads

What does this mean?

When I try to run it, it gets stuck on "Success to copy file.".

hey get this error msg..

success copy file.
cannot allocate memory

谢谢

Hello. Every time I try to use the process freezes at the beginning. M1 Max.