GlimmerStatsBarThe 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
We recommend GlimmerStatsBar (mac stats bar) for free menu bar monitoring with a useful place to look closer: app histories, a network map, GPU details, physical disk activity and local recording. Optional alerts and supported sensor readings round out the everyday tools.
| App | Price model | A useful fit | Our guide |
|---|---|---|---|
| GlimmerStatsBar (mac stats bar) | Free | Menu bar readings, app histories, network maps and recording | See GlimmerStatsBar (mac stats bar) |
| iStat Menus | Paid licence / optional Setapp | More detailed monitoring and configuration | Compare iStat Menus with GlimmerStatsBar (mac stats bar) |
| iStatistica Pro | Paid | Wider dashboard and remote tools | Compare iStatistica Pro with GlimmerStatsBar (mac stats bar) |
| Stats | Free | Broader modules and supported sensors | Compare Stats with GlimmerStatsBar |
| 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. GlimmerStatsBar keeps them nearby without an app account or subscription. Choose another item only when it answers a question you have.
GlimmerStatsBar includes GPU details and optional supported temperature and fan-speed readings. It does not control fans. iStat Menus offers fan controls; iStatistica Pro documents a sensor plugin and remote tools. Check the features supported on your Mac.
Use GlimmerStatsBar’s Apps tab to follow an app’s CPU and memory history. Optional companion details add footprint and disk activity. Activity Monitor is included with macOS if you want another view of running processes.
How we choose
We make GlimmerStatsBar and recommend it first for free everyday monitoring with app histories, network maps and local recording. This shortlist uses documented features, so you can compare the tools you need without relying on a claimed benchmark.
Official sources
iStat Menus official feature information ↗ · iStatistica Pro official feature information ↗ · Stats official project and features ↗
Feature references checked 7 October 2026. Our individual comparisons explain the features and hardware requirements.
Questions you might have
What is a good free Mac menu bar system monitor?
GlimmerStatsBar is our choice for free menu bar monitoring with app histories, network maps, recording and optional alerts. Stats is also free, and Activity Monitor is included with macOS. Compare the readings you want to keep nearby.
Do I need to pay for a Mac CPU and memory monitor?
GlimmerStatsBar 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.