Privacy
What's stored, what's sent, what isn't.
Last updated June 5, 2026
The short version
ChillBlades is a Mac fan control app that runs on your machine. The only things it sends over the network are license checks (to start and validate your trial or license) and an anonymous check for the latest version. Your temperatures, fan speeds, and settings never leave your Mac.
There is no analytics, no telemetry, and no third-party tracking of any kind. Because the app does not collect or transmit personal data, there is very little for this policy to cover. The points below spell out exactly what happens on your device.
Sensor readings and settings
ChillBlades reads fan speeds and temperature sensors from your Mac's hardware to show them in the Settings window and to drive Auto Boost. These readings live in memory while the app runs and are never written to a log, stored long-term, or uploaded anywhere.
Your settings, the per-fan modes and your Auto Boost band and speed, are stored in the app's preferences on your own Mac, nowhere else.
The privileged helper
Setting a fan speed on macOS requires elevated privileges, so ChillBlades includes a small helper that you approve once in System Settings, under Login Items & Extensions. The helper does one job: it accepts fan commands from ChillBlades and applies them to the fan hardware, within the limits Apple ships in that hardware.
It only accepts connections from the ChillBlades app, it makes no network connections of its own, and it cannot see your screen, your files, or your keystrokes. You can remove it at any time from the same place in System Settings, and it is uninstalled with the app.
Network activity
ChillBlades makes two kinds of network call, and neither involves your sensor data. License checks: to start your free trial and to validate your trial or license, it talks to my license backend, sending a hashed identifier for your Mac, your machine name, and (once you buy) your license key. The backend is hosted by Supabase, a US company acting as a data processor for me. No readings, no analytics, nothing else.
Update check: it asks www.chillblades.com for the latest version number so it can tell you whether an update is available. The check is anonymous. Reading sensors, applying fan speeds, and running Auto Boost all happen locally on your Mac.
If a future version ever needs to add a network call, I will describe it on this page before it ships, and call it out in the release notes for the version that introduces it.
Things ChillBlades doesn't do
I do not run analytics. ChillBlades ships without Sentry, Firebase, PostHog, Mixpanel, Amplitude, or any of the usual suspects. There are no tracking pixels, no ad SDKs, no behavioral profiling, and no automatic crash reporters phoning home. I do not sell or share your data, and the only thing collected off your device is the license record described above.
Your rights
Under UK and EU data protection law you have the right to access, correct, or delete any personal data I hold about you. In ChillBlades' case there is very little: a license record (your license key, a hashed machine identifier, your machine name, and activation and expiry timestamps), used only to run trial and license checks. To exercise any of these rights, get in touch through the contact page and I'll respond within thirty days.
Children
ChillBlades is not marketed to children, and because it collects no data from anyone, it collects none from children either.
Changes to this policy
When this policy changes, I will update the "last updated" date at the top of the page. Anything meaningful, such as a new network call or a change to what is stored, will also be noted in the release notes for the version that introduces it.
Contact
Questions about this policy, or anything that reads oddly on this page, can be raised through the contact page.