安装步骤：
1. 下载AppCrack （地址：http://sharebee.com/4494aac3），解压
2. SSH 到 iPhone（推荐用WinSCP），进入目录/usr/bin/, 把AppCrack带目录拷进去
3. 修改AppCrack权限为777
4. 从Cydia上安装软件”APT 0.6 Transitional”

到这里为止准备工作完毕，准备破解IPA

1. 用Terminal模式SSH 到iPhone（推荐用WinSCP或者Putty）
2. 按下面的格式敲入命令行，AppCrack “程序名字” “破解人姓名”
AppCrack "Application Name" "Cracker Name"
3. 等软件运行完，从/var/root/Cracked上拷出破解后的IPA

一些注意事项：
1. 命令行里的 “程序名字” 不是你iPhone上看到的图标下的名字，是.app文件的名字。
一个简单的办法是把IPA文件改名成zip，用 winzip / winrar 打开，进入Payload目录后的那个子目录名字就是 “程序名字”
2. 命令行里的 “破解人姓名”一定不能为空

英文原文：
I am releasing this as a command line (through MobileTerminal or preferrably SSH) alternative to Crackulous on 3.0 until it is fixed.

Once again, many thanks to Flox, SaladFork, Flawless, FloydianSlip, puy0, TraderTic, and tripleked.

ATTENTION: AppCrack has been updated on August 26, 2009! The download archive should be AppCrackV8.zip; that is the latest version! New features include the ability to dump apps like AIM and more stabliity and bug fixes!. Cracked apps are now located in /var/mobile/Cracked. The ps command is now a dependency!

ATTENTION: AppCrack Personal has been deprecated. There’s too much redundancy (thanks for pointing that out SaladFork) and is a pain in the ass to handle. If you want personal, modify it yourself.

To Install:

1. Download and unzip AppCrack V8 from here: http://sharebee.com/7deb35a8

3. SSH AppCrack into the /usr/bin/ folder of your iPhone or iPod Touch.

4. Change Permissions to 777 (chmod 777 AppCrack) so you can run it.

5. Go into Cydia and install “APT 0.6 Transitional”

To Crack an App:

1. SSH into your device using Terminal on Mac or WinSCP/Putty on Windows.

2a. To crack with a cracker name, type in with quotes:
Code:

AppCrack “Application Name” “Cracker Name”

2b. To crack without a cracker name, type in:
Code:

AppCrack “Application Name”

3. Let it work and then get the IPA from the folder it tells you to go to (/var/mobile/Cracked).

Some Notes:

1. The [Application Name] is NOT the title you see below the icon on SpringBoard. It is the actual name of the .app file, please use that because it is SOMETIMES different. A good way to find this would be to use Categories, or extract the app name from the Payload folder of the IPA (but remember to omit the .app extension).

2. If there is a dependency (which includes Erica Utilities, Darwin CC Tools, and GNU Debugger/gdb, Link Identity Editor, Core Utilities, gawk, SQLite and libraries, ps, and zip) that is not installed, AppCrack will use the terminal version of APT to install it right in the same window. If the install is successful, retry cracking the app. If not, install it from Cydia, or go into Cydia and install APT 0.7 Strict or something like that.

3. If you try to crack an already cracked app or a beta, AppCrack will fail.

4. Once again, this is intended to be a substitue for all the crackers on 3.0 who cannot use Crackulous to crack apps.

Enjoy!

原贴请见： http://hackulo.us/forums/index.php?showtopic=29262