SpeedFan
Free
SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips.
AIDA64
Commercial
AIDA64 is a system information, diagnostics, and auditing application.
HWMonitor
Freemium
HWMonitor is a hardware monitoring program that reads PC systems main health sensors : voltages, temperatures, fans speed.
Sidebar Diagnostics
Open Source
SidebarDiagnostics is a simple sidebar for Windows desktop that displays hardware diagnostic information.
Open Hardware Monitor
Open Source
Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speed.
iStat
Commercial
iStat is an advanced Mac system monitor for your menubar.
Core Temp
Free
Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information.
smcFanControl
Free
mcFanControl controls the fans of every Intel Mac to make it run cooler.
Compare Real Temp with alternatives
Compare Open Hardware Monitor and Real Temp and decide which is most suitable for you.
Compare HWMonitor and Real Temp and decide which is most suitable for you.
Compare Core Temp and Real Temp and decide which is most suitable for you.
Compare Sidebar Diagnostics and Real Temp and decide which is most suitable for you.
Compare smcFanControl and Real Temp and decide which is most suitable for you.