Lives in your menu bar.
Four display modes and a popover with every metric, the busiest apps, and idle dev servers. Try them:
Menu bar display mode
A tiny live graph next to the figure.
Features
Not just what's running. Why your Mac is slow.
Four things iKnowMyMac does that a process list can't, built on a complete set of everyday monitoring. Every feature is included in one license.
The four differences
Answers, not dashboards
- DiagnosisWhy is my Mac slow? One click, a ranked answer.iKnowMyMac reads the last hour of your Mac's history, ranks the causes of a slowdown with evidence, and suggests one action for each. On-device and offline.Right cause ranked first in 1,200 of 1,200 seeded test runsLearn more
- TimelineScroll back to the moment your Mac slowed down.Scrub back to the moment your Mac slowed down and see every app and metric as it was. 30 days of history, stored locally in about 94 MB.30 days of history for 80 apps in about 94 MBLearn more
- Sleep & batteryFind out what kept your Mac awake last night.See what is keeping your Mac awake, why it woke at 3 am, which apps drained the battery overnight, and how battery health changes over time.“Lost 14% overnight: Docker kept your Mac awake for 2h 10m”Learn more
- Developer modeEvery dev server, port and container, grouped by project.See every dev server and open port grouped by project, which ones have been idle for hours, who holds port 3000, Docker containers, iOS simulators and reclaimable dev disk.Idle servers, port conflicts, Docker and simulators on one screenLearn more
Everything else you'd expect
A complete Mac monitor, too.
CPU, memory, GPU, disk, network and battery, each with its own tab of apps sorted by that metric. Every feature is included in the one purchase.
Every metric at a glance.
Six cards with live sparklines, memory by app, and the busiest apps right now.
Alerts when an app misbehaves.
Built-in rules, your own custom rules, and a heads-up when your Mac is thermally throttled.
- CPU
- ≥ 70% for 10 min
- Memory growth
- ≥ 1 GB an hour
- Disk writes
- ≥ 1 GB in 10 min
- Network
- ≥ 500 MB in 10 min
Apps first, processes one click away.
Expand any app to see its processes and PIDs. The list holds still while your pointer is over it.
Temperatures and fans
CPU and GPU temperatures and fan speeds, validated on M1 Pro. Other chips show the thermal state.
Accessory batteries
Battery levels for your Bluetooth accessories, next to your Mac's own.
Optional read-only helper
Install it only if you want to. It reads, it can't run commands or change anything.
Also included
The small things, in the same purchase.
Share card
A clean image of your Mac's state for a post or a bug report, or copy the dashboard as text.
Weekly digest
A short summary of what used your Mac this week, generated on your Mac.
Quit and force quit
From any app or process row, always with a confirmation that says what will close.
30 days of history
Every chart goes back a month, kept on your Mac: 1 hour, 12 hours, 24 hours, 7 days, 30 days.
Sound tab
Your output device and its level, every app playing sound, and a volume slider and mute for each app, in the app and right from the menu bar.
Bluetooth tab
Every paired device with its kind and the battery it reports, which are connected and which are away, and the lowest battery named.
Arrange everything
Choose which tabs, sections, popover tiles and menu bar items appear, and in what order. One Reset puts it back.
A menu bar item per readout
CPU, memory, GPU, network, disk, temperature, battery or volume, each as its own menu bar item: a value, a graph or both.
Units
Celsius or Fahrenheit, bytes or bits, CPU per core or per Mac, previewed with your Mac's own figures.
Dock mode
An optional Dock icon. Open the app by hand and it shows its window; at login it stays in the menu bar.
Keep awake
Keep your Mac awake for a set time, while an app runs, while a build or dev server is busy, or until a download finishes.
Mac health report
A one-page PDF with model, chip, memory, SSD wear, battery health and cycles, for selling a Mac or a support ticket.
Disk speed test
An on-demand sequential read and write test with a share card. The temporary file is deleted afterwards.
Wi-Fi quality
Signal, noise, signal-to-noise ratio, channel, band and link rate, next to your network figures.
What iKnowMyMac costs you
The app's own CPU, memory and energy, shown in the popover and Settings. When nothing of ours is on screen, it reads only what your alerts need, every 15 seconds.
Measured, not claimed
Numbers we've tested
- difference between our CPU, memory, disk and network figures and top, iostat, netstat and vm_stat on our test Mac
- ±0.5%difference between our CPU, memory, disk and network figures and top, iostat, netstat and vm_stat on our test Mac
- seeded test runs where diagnosis ranked the right cause first
- 1,200 / 1,200seeded test runs where diagnosis ranked the right cause first
- for 30 days of history with 80 apps
- 94 MBfor 30 days of history with 80 apps
- download. Native Swift and SwiftUI
- 51.4 MBdownload. Native Swift and SwiftUI
Honest limits
What iKnowMyMac doesn't do
So you can decide before you buy. If you need one of these, one of the apps we compare against may suit you better.
- Per-app network or per-app GPU numbers (network and GPU are system totals)
- Intel Macs (Apple silicon only) or macOS versions before 15 Sequoia
- Widgets, Shortcuts or a Raycast extension (not yet); the command-line tool, ikmm, covers only Updates, Inspect and Traffic Control
- Changing how your Mac charges its battery
- Cleaning, “optimizing”, freeing RAM or scanning for malware (by design)
- A free trial (instead: a 14-day refund)
Know why your Mac is slow.
macOS 15 Sequoia or later · Apple silicon. A 51.4 MB native app, notarized by Apple. No account, no analytics, no telemetry.
One-time purchase · every feature · 14-day refund