A lightweight, cross-platform system monitoring tool that displays real-time hardware metrics (CPU, RAM, disk, network, temperature) in the system tray.


Fanny is described as 'Monitor fan speed and CPU or GPU temperature directly from your Mac’s Notification Center or Menu Bar with real-time stats, detailed fan info, and unobtrusive design' and is a system information utility in the system & hardware category. There are more than 25 alternatives to Fanny for a variety of platforms, including Windows, Mac, Linux, iPhone and Android apps. The best Fanny alternative is AIDA64. It's not free, so if you're looking for a free alternative, you could try Open Hardware Monitor or SpeedFan. Other great apps like Fanny are Stats, MacThrottle, Sidebar Diagnostics and HWMonitor.
A lightweight, cross-platform system monitoring tool that displays real-time hardware metrics (CPU, RAM, disk, network, temperature) in the system tray.


Monitor and manage all internal Mac temperatures, enhancing longevity by ensuring components remain cool. Supports auto/manual fan speed adjustments and offers comprehensive diagnostics with local or email alerts. Secure and compatible with Macs from 2008 onward.




GST is a GTK system utility designed to stress and monitor various hardware components like CPU and RAM.

Displays macOS CPU thermal throttling, temperature, scheduler limit, available CPUs, and system thermal pressure with color-coded alerts. Offers real-time sensor graphs and at-a-glance hardware health feedback for both Intel and Apple Silicon Macs from the menu bar.








Monitoring temperatures and status of system components such as CPU, GPU and hard disk drive, fan speeds




3C Toolbox is the comprehensive toolbox to save battery, tweak, tune, backup, secure and monitor any Android devices running any ROMs, any kernels.




macOS menu bar utility written in SwiftUI that presents CPU, memory, disk, and network usage, plus Bluetooth battery levels, customizable Big Sur widgets, Dark Mode, and real-time sensor data. Open-source, lightweight, and compatible with Apple Silicon.

YAFI is another GUI for the Framework Laptop Embedded Controller. It is written in Python with a GTK4 Adwaita theme, and uses the CrOS_EC_Python library to communicate with the EC.




Continuously monitors and logs temperatures from Intel Core single, dual, quad, and i7 CPUs using digital sensors, supports per-core calibration, benchmarking, and logging, offers high temperature alarms and auto shutdown, and operates as a portable utility with no installation.
