Native macOS 26 / Menu-bar monitor
Know exactly why
your Mac is slow.
PeakBar lives in your menu bar and watches CPU, memory, GPU, battery and heat in real time. The moment something drags, it names the exact app to blame, and you can just ask it what is wrong. 100% on-device.
Requires macOS 26 (Tahoe) or later. Apple Silicon. One-time payment, no subscription, ever.
Everything, at a glance
Small app. Seriously capable.
Live metrics
CPU, memory, GPU, network, disk and battery, every second, with sparkline history.
It names the culprit
PeakBar learns each app's normal usage. When something spikes it tells you which app, like "Safari is at 3x its usual", and lets you quit it in a tap. It never tells you to quit the app you are working in.
Ask your Mac
Type a question in plain English: "why is my Mac slow?", "what is eating my memory?". PeakBar answers using your live stats, entirely on-device.
Mac Score
A live 0 to 100 health score with a letter grade, computed from CPU, memory, heat, storage and battery health. Every point is explained. Export a shareable card.
Smart alerts
Flags sustained CPU, RAM and app pressure before it bites, and knows the difference between "busy" and "something is wrong".
Battery health
True capacity and cycle count, not just the charge percentage.
Global hotkey
Option-Command-P opens PeakBar from anywhere, instantly.
Featherweight
Native SwiftUI, built for Apple Silicon. Barely there.
Pricing
One coffee.
Yours forever.
Use it on your Mac, no account required. Every feature, including the on-device AI. New features land automatically. Free, forever.
- + Every feature, including Ask your Mac
- + Mac Score with shareable card
- + Smart alerts and live history
- + Auto-updates, free forever
- + 100% private, nothing leaves your Mac
Questions
Good to know.
Will it run on my Mac?
PeakBar needs macOS 26 (Tahoe) or later, on an Apple Silicon Mac (M-series). It uses macOS 26's Liquid Glass and on-device intelligence, which is why both are required.
Is $5 really one-time?
Yes. One payment, no subscription. You get every feature and all future updates, free, forever.
How do I get it after buying?
Checkout is handled by Dodo Payments. The moment you pay, you get a download link and a license key by email. Open the app, paste the key, done.
Is it really private?
Everything PeakBar measures stays on your Mac. The "Ask your Mac" AI runs entirely on-device via Apple Intelligence. No servers, no API keys, no account. Anonymous analytics are off by default and fully opt-in.
How are updates delivered?
PeakBar updates itself automatically via Sparkle. New features and fixes arrive in the background. You never re-download anything.
Can I get a refund?
Absolutely. If PeakBar is not for you, email me at hello@mbdesignwork.com and I will sort you out. No hassle.