Mac users interested in Istat menus for 10.6.8 generally download:
iStat Menus is a Mac utility that displays various system performance details in your Menu Bar. With its help, you can monitor your CPU usage, sensors temperature, fan speed, weather information for your current area, and many others.
The main window of the program gives you access to various settings which can easily be configured even by a beginner Mac user.
iStat Server for Mac transmits your computer or server's vital statistics to iStat for iOS. It is the fastest and easiest way to remotely monitor a Mac from anywhere in the world, using your iPhone or iPad.
iStat Server requires iStat for iOS, available on the App Store, in order to function.
A mini system monitor for your Mac. iStat Mini is a compact way to keep an eye on your CPU, memory pressure, disk usage and network activity. Simply slide out OS X Yosemite’s Notification Center to glance at the stats, then slide it back again to free up your workspace.
iStatistica Sensors is a software program designed to help users monitor their system by providing useful information about battery, network activity, CPU usage, or temperature sensors.
The app can be installed with ease by any type of user. It doesn't impress visually, but its features work just fine.