No specific info about version 2.1. Please visit the main page of NetUse Traffic Monitor on Mac Informer.
Memory Monitor is a very small, open-source system utility.
Net Monitor analyzes the network activity of your computer.
Net Monitor Sidekick monitors local and remote computers' network interfaces.
AirPort Monitor Utility allows you to view information about the Apple AirPort
Helps you prevent your children from accessing adult content websites.