How is Vitals Buddy different from Activity Monitor?

Activity Monitor lists processes, about a thousand on a working Mac. Vitals Buddy lists apps. Every helper is added to the app that launched it, so each app has one figure for memory, CPU, energy, disk and network. Vitals Buddy also keeps 30 days of history, sends a notification when an app misbehaves, lives in the menu bar, and finds dev servers left running.

Does it replace Activity Monitor completely?

For everyday questions, yes: what is using the memory, what is draining the battery, what is slowing the Mac down. You can quit or force quit an app or a single process from Vitals Buddy. Activity Monitor still has a few specialist tools, such as sampling a process, that Vitals Buddy does not copy.

Does it slow my Mac down?

With no window open it samples every five seconds and uses about a tenth of a percent of one core. It samples faster only while you are looking at it.

Which Macs does it run on?

macOS 15 Sequoia or later, on Apple silicon (M1, M2, M3, M4, and M5 chips) and Intel. Power and temperature figures are most detailed on Apple silicon.

Can I arrange the menu bar like iStat Menus?

Yes. Every readout can be its own menu bar item, a value, a graph or both, and you ⌘-drag them into any order. The dropdown and the window are yours to arrange too: choose the tabs, and show, hide or reorder the sections on each.

Does it live in the Dock or the menu bar?

Both, if you like. It is always in the menu bar. Turn on Show in Dock and it stays in the Dock like Activity Monitor; opened by hand it shows its window, and at login it stays in the menu bar.

How much does it cost?

The regular price is $29 for one Mac. During the launch it is $5 for the first licenses, and the price goes up as they sell. It is one payment, not a subscription. The count on this page comes from our licensing server, so it is the real number.

Do I pay again for updates?

No. Every update is included for life. There are no paid upgrades and no renewal.

How many Macs can I use it on?

As many as you pay for. One license covers one Mac, and two Macs cost twice that. For more, pick 5, 10, 25 or 50 Macs on the pricing card. You get one license key that works on that many Macs, and each Mac costs less as the bundle gets bigger: $99 for 5, up to $699 for 50. During the launch, a bundle costs the launch price for each Mac if that is less. Move a license to a new Mac whenever you like, with no account and no email to support.

How does the 50% back offer work?

Buy Vitals Buddy, post about it on X, Reels, TikTok or Shorts, and email us the link. At 2,000 views we refund half of what you paid, and at 20,000 views we refund all of it. On X it takes 10,000 and 50,000 impressions. You keep your license. The cash back page has the rules.

Is there a free trial?

No, but there is a 14-day refund. If Vitals Buddy is not for you, email us and we refund the payment.

How do I get the app after paying?

The download link is on the page you land on after checkout. Your license key arrives by email within a minute. If you lose either, enter your key on the download page to get the link again.

Why is it not on the Mac App Store?

The App Store sandbox stops an app from reading other apps' processes, which is the one thing an activity monitor has to do. Vitals Buddy is signed with our Apple Developer ID and notarized by Apple, so it opens like any other app.

Does it send anything about my Mac anywhere?

Nothing about what you run. Your apps, your history and your project names stay on the Mac. Vitals Buddy goes online only to check for updates and to check your license. Activating sends the key, the Mac's name and an anonymous ID, so you can tell your Macs apart when you move a license.

What is the optional helper?

macOS only lets an app read your own processes. To include the system's, you can enable a small helper. It answers one question, how much these processes are using, takes no commands, changes nothing, and quits when Vitals Buddy closes. Vitals Buddy works without it.

Can Vitals Buddy quit apps on its own?

No. It only quits an app, a process or a dev server when you ask, and it shows a confirmation first.

Why is WindowServer using so much CPU on my Mac?

WindowServer manages macOS display composition. It spikes if you have multiple external monitors connected, many windows overlapping, desktop wallpaper switching frequently, or apps with dynamic animations running.

Does high CPU damage my MacBook?

No. Modern Apple Silicon and Intel chips have built-in thermal protection. If temperatures exceed safe limits, the processor automatically throttles clock speeds to cool down. However, sustained high CPU will drain your battery rapidly.

How to Check CPU Usage on Mac (Menu Bar, Activity Monitor, CLI)

Name: Vitals Buddy
Price: 5.00 USD
Availability: InStock
Rating: 4.9 (186 reviews)
Author: Vitals Buddy

Key Takeaways

•You can check Mac CPU load via Activity Monitor, Terminal (top / htop / powermetrics), or live in your menu bar with Vitals Buddy.
•WindowServer, Google Chrome helpers, Spotlight indexing (mds_stores), and forgotten Node.js dev servers are the most common CPU hogs.
•A CPU running at 80%–100% during intensive video rendering or code compiling is completely normal; it is abnormal when your Mac is idle.
•Terminal command 'top -o cpu' gives you an instant terminal readout of top consumers without launching a heavy GUI.
•Vitals Buddy lives directly in your menu bar, alerting you the moment an app misbehaves and exceeds healthy CPU thresholds.

Overview

3 Ways to Check CPU Usage on Mac

When your Mac's fans ramp up or animations stutter, checking your central processor (CPU) load tells you immediately whether a rogue process is eating system resources.

Depending on your workflow, you can check CPU usage through the built-in Activity Monitor application, rapid Terminal commands, or always-visible menu bar monitors.

GUI Method

Method 1: Check CPU Usage in Activity Monitor

Open Activity Monitor (⌘ + Space, type 'Activity Monitor', press Return). Click the CPU tab at the top. The window shows two critical areas:

→Process Table (Top): Click the '% CPU' column to sort from highest to lowest. Look at the top 3 processes.
→CPU Load Graph (Bottom Pane): Shows User % (apps you run), System % (macOS internal services), and Idle % (available headroom).
→CPU History Window: In the top menu bar, click Window > CPU History (or press ⌘ + 2) to open a multi-pane real-time graph displaying the individual load on every Performance and Efficiency core of your Apple Silicon chip.

CLI Commands

Method 2A: Check Top Processes via Terminal (top)

If you are a developer or working over SSH, you can inspect CPU usage directly in your terminal shell with zero GUI overhead:

bash

top -o cpu -n 10

Launches an interactive live view showing top 10 CPU-consuming processes. Press 'q' to quit.

Deep M-Series Telemetry

Method 2B: Apple Silicon Hardware Telemetry (powermetrics)

For Apple Silicon Macs (M1 through M5), macOS provides an incredible diagnostic tool named powermetrics that measures power in milliwatts, thermal pressure, and core frequency:

bash

sudo powermetrics --samplers cpu_power -n 1

Inspects live package power, E-core vs P-core cluster power, and active CPU frequencies.

Always Visible

Method 3: Live Menu Bar Stats (The Effortless Approach)

Opening Activity Monitor or Terminal every time your Mac stutters interrupts your flow. The ideal setup for professional Mac users is having real-time CPU percentages glanceable in your macOS menu bar.

With Vitals Buddy, your menu bar displays live CPU load, RAM usage, and temperatures in clean text, sparkline graphs, or bar gauges. You can ⌘-drag them into any position alongside your system clock.

Even better: if an application suddenly spikes to 95% CPU in the background, Vitals Buddy highlights it in red, letting you inspect and kill it with a single click.

Diagnostic Checklist

Top Causes of 100%+ High CPU Usage on Mac

When you notice high CPU on your Mac, 9 times out of 10 it is caused by one of these four processes:

→WindowServer: Responsible for drawing everything on your screens. High CPU occurs when you have 30+ open windows, stage manager, high-resolution external 4K/5K displays, or transparent blur effects.
→Google Chrome / Electron Helpers: Each browser tab, extension, and apps like Slack, Notion, and Discord run isolated renderers that can enter infinite JavaScript loops.
→mds, mds_stores, mdworker: macOS Spotlight indexing services. When you download a massive Git repo, video archive, or update macOS, Spotlight scans files and temporarily spikes CPU for 10–30 minutes.
→Orphaned Dev Servers: Node.js, Next.js, Vite, or Python processes left running on localhost ports in background terminal sessions.

Action Steps

How to Fix High CPU & Cool Down Your MacBook

Follow this rapid checklist when your CPU is running hot:

→Identify and quit runaway browser tabs: In Chrome, press Shift + Esc to open Chrome's built-in Task Manager and kill frozen tabs.
→Kill orphaned dev processes: In Vitals Buddy, jump to the Projects & Dev Servers tab to see all listening ports (3000, 5173, 8080) and click 'Kill Port' instantly.
→Restart WindowServer safely: Save your work, log out of your macOS user account (Apple menu > Log Out), and log back in. This flushes the graphics compositor cache.
→Elevate your MacBook: Ensure the rear hinge air vents are clear. Never use a MacBook Pro on a soft bed or pillow that suffocates intake vents.

Frequently Asked Questions

Common Questions & Answers

When your Mac is idle with basic apps open (Mail, Notes, a few web pages), total CPU usage should sit between 2% and 12%. During heavy workloads like video exporting, 3D modeling, or Xcode builds, usage can surge to 80%–100% across all cores, which is completely expected.

How to Check CPU Usage on Mac & Fix High CPU Load

3 Ways to Check CPU Usage on Mac

Method 1: Check CPU Usage in Activity Monitor

Method 2A: Check Top Processes via Terminal (top)

Method 2B: Apple Silicon Hardware Telemetry (powermetrics)

Method 3: Live Menu Bar Stats (The Effortless Approach)

Top Causes of 100%+ High CPU Usage on Mac

How to Fix High CPU & Cool Down Your MacBook

Common Questions & Answers

Related macOS Performance Guides

Mac Activity Monitor Guide: How to Read, Use & Understand Process Stats

Why is kernel_task Using High CPU on Mac & How to Fix It

Best Mac Monitoring Apps in 2026: Activity Monitor Alternatives Reviewed