Top Alternatives to iStat

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

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

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.

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

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

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

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

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

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

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

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