Alternatives to Real Temp for all platforms with any license

Open Hardware Monitor

Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.

Free Open Source Windows Mono
Temperature Monitoring Hardware Monitoring Portable Voltage monitoring ... Fan speed control Lightweight Command line interface Export to CSV Hardware Monitoring Temperature Monitoring Add a feature

215 Like
AIDA64

AIDA64 offers a complete set of tools to benchmark, overclock, monitor, fine-tune, and troubleshoot Windows based desktop and mobile computers. .

Commercial $ $ $ Windows Android iPhone Windows S Android Tablet ... Windows Phone iPad Tizen OS Ubuntu Touch
Hardware Monitoring Overclock System Info Add a feature

143 Like
SpeedFan

SpeedFan is a program that monitors voltages, fan speeds and temperatures in computers and controls the fans if possible.
- Discontinued
  The developer promised new versions, but the program seems to be no longer updated. Latest version, 4.52, released in June 2016, can be still downloaded from the official website.
Free Windows
Fan speed control Fan speed control Hardware Monitoring Overclock ... Support for S.M.A.R.T. data Add a feature

237 Like
HWMonitor

PC hardware sensor monitoring utility that displays voltages, temperatures, and fan speeds.

Freemium Windows
Hardware Monitoring Hardware Monitoring Temperature Monitoring Add a feature

95 Like
Sidebar Diagnostics

A simple sidebar for Windows desktop that displays hardware diagnostic information.

Free Open Source Windows
Portable System Info Temperature Monitoring Configurable ... Fan speed control Hardware Monitoring Performance Monitoring Real-time monitoring Temperature Monitoring Add a feature

38 Like
iStat Menus

iStat is a series of system monitor apps. It's available in different versions: iStat Menus, iStat for iOS and iStat Server as a companion application to the iStat...

Commercial $ $ $ Mac iPhone
Hardware Monitoring Sits in the MenuBar Real-time monitoring System Info ... Fan speed control Graphs Hardware Monitoring Memory usage Remote monitoring Sits in the System Tray Add a feature

104 Like
Core Temp

Core Temp is a compact, no fuss, small footprint, yet powerful program to monitor processor temperature and other vital information. .
- Bundleware
  The installation may contain adwares. Be careful during the installation: https://alternativeto.net/discussions/applications/11718/be-careful-in-the-installation/
- Shows more correct values of temperature as well as some useful additional info about CPU Guest • Mar 2019
Free Windows
CPU temperature AMD Hardware Monitoring Portable Add a feature

54 Like
Lm-Sensors

Lm-Sensors is a free and open-source application that provides tools and drivers for monitoring temperatures, voltage, and fans.

Free Open Source Linux
Fan speed control Temperature Monitoring Add a feature

12 Like
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smcFanControl

smcFanControl is the perfect application for all those Macbook owners getting burned by their hot-running Macbook. This Mac application allows you to control the speed...

Free Personal Open Source Mac
Fan speed control Picture sharing Add a feature

17 Like
3C Toolbox

Comprehensive toolbox to save battery, tweak, tune, backup, secure and monitor any Android devices.

Freemium Android
Battery Monitor System Cleanup Hardware Monitoring Software Uninstallers ... System Info Add a feature

10 Like