Alternatives

The best Activity Monitor alternatives for Mac in 2026

Updated · 7 min read

Activity Monitor is free, accurate and already on your Mac. Its limits are that you have to open it, it only shows the present moment, and it never warns you about anything. These alternatives fill those gaps in different ways. Here's an honest look at each, including where Activity Monitor is still the better tool.

At a glance

AppBest forPrice
Activity MonitorDeep inspection of every processFree, built in
Tempo for MacA clear, lightweight menu bar monitor with history and alertsOne-time purchase
iStat MenusPower users who want every sensor and lots of customizationPaid
StatsA free, open-source menu bar monitorFree
MenuMetersClassic minimal menu bar graphsFree
btop / htopMonitoring from the TerminalFree

1. Tempo for Mac

Tempo keeps the vital you care about in the menu bar (CPU, memory, storage, network, battery or thermal state, as an icon, a live value or both) and opens into a calm dashboard with live charts and 30 days of history kept on your Mac. Its Processes tab shows the ten busiest apps with their icons, sorted by CPU, memory or energy.

  • Good: very light (about 2% CPU with the window open), clear design, history, alerts for CPU, memory pressure, storage and battery, private.
  • Not for you if: you need GPU load, fan speeds or exact temperatures, which Tempo doesn't show.

Tip

Full disclosure: Tempo is our app. We've tried to be fair to the others below.

2. iStat Menus

iStat Menus by Bjango is the long-standing power-user choice: a deep set of menu bar items covering CPU, GPU, memory, disks, network, sensors, fans and more, each highly customizable.

  • Good: breadth of data, including sensors and fans; mature and polished.
  • Not for you if: you want something simple; the depth comes with many settings.

3. Stats

Stats is a free, open-source menu bar monitor with modules for CPU, GPU, memory, disk, network, battery and sensors. It's a popular free alternative to paid monitors.

  • Good: free, open source, lots of modules.
  • Not for you if: you want a full dashboard window, long-term history or a highly polished design.

5. btop and htop (Terminal)

If you live in the Terminal, btop and htop are excellent free process viewers. Install them with Homebrew (brew install btop) and run them in any terminal window.

They're fast and keyboard-driven, but they don't live in the menu bar or keep history.

6. When Activity Monitor is still the right tool

For investigating one misbehaving process, Activity Monitor remains hard to beat: it lists every process with every detail, can sample a process, inspect its open files and force quit anything you own. Most people keep it for deep dives and use a menu bar monitor for everyday awareness. See Activity Monitor explained.

How to choose

  • Want the clearest everyday view, history and alerts with almost no overhead: Tempo.
  • Want every sensor and fan reading: iStat Menus.
  • Want free and open source: Stats or MenuMeters.
  • Work mostly in the Terminal: btop.

Keep reading

Compare

Tempo vs Activity Monitor: which do you need?

Tempo for Mac compared with Apple's Activity Monitor: menu bar values, history, alerts, process detail and price, and when to use each.

4 min read →

Alternatives

Task Manager for Mac: where it is and how to use it

The Mac's Task Manager is called Activity Monitor. Here's how to open it, force quit apps, the Ctrl-Alt-Delete equivalent and the best menu bar alternatives.

5 min read →

Basics

Activity Monitor explained: every tab, in plain English

A plain-English tour of Activity Monitor on Mac: what the CPU, Memory, Energy, Disk and Network tabs show, which columns matter and how to quit a stuck app.

8 min read →