AtMonitor is an advanced monitoring tool for Mac OS X that displays system activity in real-time.

DriveDx is an advanced drive health (S.M.A.R.T.) diagnostics and monitoring utility.

Informer is an iPhone and iPad utility app to see device details.

Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speed.

SidebarDiagnostics is a simple sidebar for Windows desktop that displays hardware diagnostic information.

SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips.

Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information.

Hardware Info (HWiNFO) is a powerful system information utility designed especially for detection of hardware.

MSI Afterburner is a graphics card overclocking utility which gives you full control of your graphics cards.

Real Temp is a temperature monitoring program designed for all Intel processors.

mcFanControl controls the fans of every Intel Mac to make it run cooler.

WinAudit is an inventory utility for Windows computers. It creates a comprehensive report on a machine's configuration, hardware and software.