We are not really a big fan of Chinese apps but if you are an analyst and wish to learn more about iPhone apps developed in China, you may want to consider installing this mobile security app developed by a Chinese software company Qihoo 360.
360 Shouji Weishi (Mobile Guardian) is a free mobile security software for iPhone. They claim that it works as anti-spam software, provides privacy protection, improve system speed etc.
The latest version 1.4.3 has the following features/updates:
1. Supports iPhone 4 and Retina Display
2. Supports up to iOS 4.2.1
3. Comprehensive protection of data files to prevent privacy leak
4. One tap function to turn off, restart or fast reboot your iPhone
5. Option to delete system log files
6. Resolved other bugs
How to install:
1. Your iPhone must be jailbroken first.
2. Add this souce to Cydia: http://m.360.cn/cydia
3. Install 360 Shouji Weishi
Note: This software is only available in Chinese