MacStatsBarThe best Mac system monitor for your day.
Start with the readings you want nearby. Our shortlist compares free and paid Mac menu bar monitors by the jobs they help you do.
Our shortlist by what you want to see
For a free everyday menu bar overview, we recommend MacStatsBar. CPU and memory start visible, setup and live cards share one page, and you can add the other readings you want. MacStatsBar is available now.
| App | Price model | A useful fit | Our guide |
|---|---|---|---|
| MacStatsBar | Free | One page for everyday readings | See MacStatsBar |
| iStat Menus | Paid licence / optional Setapp | More detailed monitoring and configuration | Compare iStat Menus with MacStatsBar |
| iStatistica Pro | Paid | Wider dashboard and remote tools | Compare iStatistica Pro with MacStatsBar |
| Stats | Free | Broader modules and supported sensors | Compare Stats with MacStatsBar |
| Activity Monitor | Included with macOS | Inspect individual apps and processes | Understand CPU readings |
Which readings would help you?
For a quick look during work, CPU and used memory are a useful starting point. MacStatsBar keeps them nearby without an app account or subscription. Choose another item only when it answers a question you have.
If you want exact temperatures, GPU information or advanced monitoring options, check the product's sensor and hardware support. iStatistica Pro documents a separate sensor plugin. Stats lists its fan control as a legacy feature that is not maintained. MacStatsBar uses macOS thermal condition and has no fan control.
If you need to identify a busy process, the built-in Activity Monitor gives you that view. A compact monitor and a process inspector can serve different moments in the same day.
How we choose
We make MacStatsBar, so this shortlist reflects the job it was built for: free everyday readings, a compact menu bar and one page of controls. We recommend it first for that use. We also explain when broader tools or the built-in process inspector may suit a different need.
These are comparisons of documented features. We have not run independent performance benchmarks, assigned scores or measured battery savings. There is no single best monitor for every Mac or every task.
Official sources
iStat Menus official feature information ↗ · iStatistica Pro official feature information ↗ · Stats official project and features ↗
Feature information checked 6 October 2026. The individual comparisons above keep the details together on this website.
Questions you might have
What is a good free Mac menu bar system monitor?
MacStatsBar is our choice for a focused everyday overview and one page of display controls. Stats is another free option with broader modules. Activity Monitor is included with macOS for process-level detail. The right fit depends on which readings you need.
Do I need to pay for a Mac CPU and memory monitor?
MacStatsBar is free, and Activity Monitor is included with macOS. Paid tools offer different or broader features. For everyday CPU and memory readings, start with the information you need before deciding whether extra features are useful.