Corynx: System Monitor

A beautiful, native system monitor for your Mac. Version 1.0

About

Corynx shows exactly what your Mac is doing — at a glance in the menu bar, and in depth in a clean dashboard. It tracks CPU load (with per-core detail), GPU usage, memory pressure and swap, disk capacity and live read/write throughput, network throughput, battery health, and thermal pressure. Built entirely in SwiftUI for macOS, Corynx is fast, light, and private: everything stays on your Mac. No account, no tracking, no ads.

Getting started

Open the dashboard. The sidebar switches between Overview and each subsystem — CPU, GPU, Memory, Disk, Network, Battery and Sensors.
Use the menu bar. Corynx lives in your menu bar with a live readout. Click it for a quick popover; open Settings → Menu Bar to choose which numbers appear.
Tune the refresh rate in Settings → General, and turn on Launch at login to keep Corynx watching from startup.

FAQ

What’s free, and what does Corynx Pro add?

The live readouts — CPU, memory, disk, network, battery and thermal pressure — are free. Corynx Pro adds history & trend graphs for every subsystem, the detailed GPU and advanced modules, full menu-bar customization, CSV export, and — together with the free Corynx Sensor Helper — real CPU/GPU temperatures and live fan speeds. Pro is a Monthly or Annual subscription, or a one-time Lifetime purchase.

Why do exact temperatures and fan speeds need a separate helper?

macOS does not allow a sandboxed Mac App Store app to read the System Management Controller (SMC), which is where precise temperatures and fan RPM come from. On its own, Corynx shows the system thermal-pressure level (Nominal → Critical). To show exact °C and fan RPM, install the free Corynx Sensor Helper — a small, notarized companion that reads the sensors locally and hands them to Corynx on your Mac. Nothing leaves your computer.

How do I manage, cancel, or restore my subscription?

Open the membership screen (the crown button in the toolbar, or “Upgrade to Pro” in the sidebar) to see your plan, price and renewal date, and to manage or cancel. Subscriptions are billed by Apple and can also be managed in System Settings → your Apple Account → Subscriptions. On a new Mac or after reinstalling, click Restore Purchases.

Does Corynx slow down my Mac?

No. Corynx samples lightweight system counters on a timer you control and uses a tiny fraction of CPU. Increase the refresh interval in Settings if you want it even lighter.

Is my data collected?

No. Corynx reads system metrics locally and never transmits them. There are no accounts, no analytics and no ads. See the Privacy Policy for details.

I found a bug or have a feature request.

Please email mwsupplylimited@gmail.com with your macOS version, Mac model, and steps to reproduce. We read every message.

Contact

For support: mwsupplylimited@gmail.com

Privacy

See the Corynx Privacy Policy.