Features: Detailed overview of CPU, network, disk, battery, weather, and other events | In-depth information from the sensors built into your Mac | Customizable interface
iStat Menus is an advanced Mac system monitor that covers an enormous range of statistics. I love this app because it allows me to geek out on a massive amount of system information.
iStat Menus features a built-in weather app, a notification system that informs you of errors, and a battery level display for your connected AirPods, Magic Mouse, Magic Trackpad, and other devices.
The information seems nearly endless, data covers a whole raft of real-time data from sensors, including temperatures, hard drive temperatures, fans, CPU frequency, GPU frequency, voltages, current and power, and much more.
This app organizes a plethora of important, useful information right at your fingertips. And it does it in a beautiful way.