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• Discontinued The developer promised new versions, but the program seems to be no longer updated.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

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

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/

Free Windows

MenuMeters for El Capitan

This is a port to OS X El Capitan 10.11 of MenuMeters by Alex Harper. MenuMeters is a set of CPU, memory, disk, and network...

Free Open Source Mac

Real Temp

Real Temp is a temperature monitoring program designed for all Intel single Core, Dual Core, Quad Core and Core i7 processors.

Free Windows

BatteryBar

BatteryBar is a straight-forward battery meter that monitors the status of your battery and displays your batterys status in the taskbar. The more you use it, the more...

Freemium Windows

BatteryCare

BatteryCare is a software created to optimize the usage and performance of the modern laptop's battery.

• Bundleware Opencandy installer. Be careful or choose the portable version.

Free Windows

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...

• Discontinued The program seems to be no longer updated. Last version, 2.6, released in October 2016, can be still downloaded from the official website.

Commercial Mac

Fan Control

Some MacBook (Pro) are just to hot for daylong use. Fan Control adjusts the minimum fan speed depending on the current CPU temperature. For safety, it leaves the...

Free Open Source Mac

MiniUsage

MiniUsage displays various data like CPU usage, amount of network flow, battery status and process names which uses much CPU time in a menubar. It takes little space and...

• Discontinued The program seems to be no longer updated. Last version, 3.0.0, released in April 2015, can be still downloaded from the official website, but it doesn’t work on macOS 10.13

Free Mac

BatteryAlarm 40-80%

Monitor the battery of your laptop.

Free Windows

Accubattery

Monitor's battery capacity through the use of science.

Freemium Android

coconutBattery

coconutBattery isnt just a tool which shows you only the current charge of your battery - it also shows you the current maximum capacity of it in relation to the...

Free Mac

BatteryMon

BatteryMon is a battery monitoring software solution. It has been designed as an easy-to-use Windows based application that allows users to monitor the performance of...

Free Personal Windows

Battery Life Pro

Here comes the most desirable battery monitor app now! Battery Life Pro is exactly the functional app for your device. Battery Life Pro is not only the best assistant...

Free iPhone