The most comprehensive Mac monitor to date. iStat Menus is a fully-equipped system data collector that lives in your menu bar and provides vital info about the key indicators. You get the stats on CPU load, memory load, disk usage/space, disk activity, temperature monitor, fan sensors, battery life and cycles, weather, and so much more. And, there’s a Dark Mode support. Of course, there is.

Features
CPU & GPU
All you need to know to be sure everything’s alright: Mac CPU usage and overall activity. Quickly check on it without opening the app — the menu bar icon will show you the info. It’s real-time and you can view your Mac’s process monitor by individual cores or by all cores combined.

Memory
You can view memory stats in any form you prefer — as a pie chart or bar graph. Plus, you get a list of apps using the most memory, so you know which to quit when it gets tight.

Network
A realtime graph to keep on top of what’s being sent and received for all network connections, including a bandwidth breakdown for the top 5 apps.

Disk usage & activity
One of the main Mac performance monitors is naturally disk usage and general disk activity. Apart from general info on both HD and network drives, iStats gives you a variety of read and write indicators and S.M.A.R.T status monitoring.

Sensors
A realtime view of temperatures, hard drive temperatures (where supported), fans, voltages, current and power. Fan speeds can be controlled, with different rules when on battery power, if you’d like.

Date & time
Most of daily needed info in super detailed form: date, time, and an extensive weather for Macs module with temperature calendar, moon phases, wind speeds, dew points, and more. iStat Menus also has a world clock to show you not just the time, but sunset and sunrise times all across the globe.

macOS 10.13 or later required

Homepage

http://bjango.com/mac/istatmenus