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Download 2.34 for macOS

macOS 14 or later · Apple silicon11.9 MB

How to install

MonitorCPU and GPU

See what your Mac is doing. In a sentence, then in detail.

Nine pages cover the processor, graphics, the Neural Engine, memory, disk, network, hardware and every running process. Each one opens with a plain sentence built from the reading on screen, and the instrument behind it.

Pages
9
Overview, Processes, CPU, GPU, Neural Engine, Memory, Disk, Network, Hardware.
Sampling
1, 2 or 5s
You choose how often it measures.
On one clock
120s
Seven readings on the same timeline.
Process columns
22
With presets and saved views.
CPU24%User 17.6% · System 6.4%
Busiest appLumen Edit212.4% CPU · 100% is one core

00Monitor7 sections

01Overview1 of 7

Your chip, drawn the way it is built

Overview lays the Mac out like Apple silicon itself: a cell for every CPU core, the GPU, the Neural Engine, the memory they share and the power they draw. Disk and network stand beside it.

This is how the app shows itOverviewLive

  1. A sentence first. "No warning in assessed readings", or "Memory pressure is elevated", with the busiest app named underneath.
  2. Every tile is a door. Click CPU, memory or network to open its page.
  3. One clock for everything. The live timeline puts seven readings on the same 120 seconds. Point at a spike and the whole stage rewinds to it.

Guide: Find what is slowing your Mac7 steps · 3 minutes

02Processes2 of 7

Every app, with its helpers counted in

A browser is dozens of processes. Processes gathers them under their app, so you see what each app really costs. Sort by any column, search by name, PID or path, and select a row to see its last 60 seconds.

This is how the app shows itProcesses · Apps & helpers

  1. Four ways to group. Apps & helpers, All processes, Process tree, and Projects, which gathers developer tools by the folder they are working in.
  2. CPU, GPU time, memory, disk and network side by side. 22 columns, with presets and views you can save.
  3. Actions with a review. Quit, Force Quit and Pause list the exact processes before anything is sent.

Guide: Stop a runaway process safely5 steps · 2 minutes

03CPU3 of 7

Every core, at a glance

A dial for the whole Mac with a spoke for each core around it. User and system time are drawn apart, every core has its own tile, and cluster frequency shows how hard the chip is being pushed.

This is how the app shows itCPU

  1. The sentence counts for you. "3 of 14 cores are above 50%."
  2. Whole Mac and per core, never mixed up. The Mac runs from 0 to 100%. A core is 100% when fully busy. Both are labelled wherever they appear.

04Memory4 of 7

Pressure, not just a full bar

A Mac is meant to fill its memory. What matters is whether it is struggling, and that has a name: memory pressure. The Memory page puts it first, then shows what counts as used and which apps hold it.

This is how the app shows itMemory

  1. Three zones, one mark. Normal, Elevated or Critical, as macOS reports it.
  2. Used means app + wired + compressed. File cache sits outside the bracket, because macOS gives it back on demand.

Guide: Read memory the right way5 steps · 3 minutes

05Network and Disk5 of 7

Who is talking, and how much

Network shows traffic for the whole Mac, then per app, then per connection, down to the address at the other end and who signed the program that opened it. Disk does the same for reading and writing.

This is how the app shows itNetwork · Apps & processes

  1. Per app without a network extension. l/Activity reads counters and socket addresses. It never looks inside your traffic.
  2. Received above the line, sent below. One shared scale, so the shape tells the story.
  3. Export what you see. Connections as CSV or JSON.

Guide: See which app is using your network6 steps · 4 minutes

06GPU, Neural Engine, Hardware6 of 7

The parts other monitors skip

GPU activity with renderer and tiler apart, and GPU time per app. Neural Engine power and energy. Power for CPU, GPU and Neural Engine together. Thermal state, and temperatures where your Mac reports them. None of it needs an administrator password.

This is how the app shows itGPU · Neural Engine · Hardware

GPU

Neural Engine

Hardware

08Honest numbers

It does not make numbers up

  1. A dash, not a zero

    When macOS gives no reading, you see a dash and, where it helps, the reason.

  2. Two scales, both labelled

    The Mac is 0 to 100%. An app counts 100% per busy core. The words are always next to the number.

  3. Estimates say so

    Memory categories, component power and anything inferred are marked as estimates.

  4. Gaps stay gaps

    Time the Mac slept or the app was paused is left empty on every chart.

09Guides

Do it step by step

All guides

Version 2.3411.9 MB

Get l/Activity

A native app for Apple silicon Macs. No account, nothing to set up.

Download 2.34 for macOSInstalling and updating

macOS 14 or later · Apple silicon11.9 MB

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