Sonar is a security tool that provides real-time reporting of file changes on your hard drive. It is a useful diagnostic tool and an invaluable aid for anyone who is serious about computer security. Mere mortals may find Yank more suitable for their needs.

Sonar can be useful for several purposes:

• Monitor untrusted software with Sonar to ensure it is not installing spyware or other unauthorized files without your knowledge. Or use Yank with Sonar technology—to create simple uninstaller files.
• Use Sonar to troubleshoot Spotlight-related slowdowns on your computer.
• Developers can use Sonar to monitor how frequently their software writes to the hard drive. Use this information to optimize your program’s hard drive usage.

Requirements:
OS X 10.4-10.6
Universal Binary