Privacy Policy

Last updated: 29 July 2026

The short version: the ZasMac app collects nothing — no telemetry, it never records audio and never touches your camera. This website uses Google Analytics, which sets cookies and shares basic traffic data (including your IP address) with Google. The only other personal data involved anywhere is the email address you give Polar when you pay — and Polar holds that, not us.

The long version is below, and it is short too.

1. Who is responsible

Data controller: ZasMac. You can reach a human at hello@zasmac.app.

For anything about your purchase — the invoice, the card, the email address you paid with — the responsible party is Polar, who sell ZasMac as Merchant of Record. See section 5.

2. This website

Google Analytics. This site uses Google Analytics (GA4) to count visits and see, in aggregate, how people find and move through it. We use it to know what is working, not to identify you.
Cookies. Google Analytics sets cookies in your browser so it can tell repeat visits apart. They are analytics cookies, not advertising ones, and they are the only cookies this site sets.
Data shared with Google. Loading Analytics contacts Google and hands it the technical data any analytics tool sees — your IP address, your browser and the pages you open. Google processes that under their privacy policy. We do not combine it with anything else or use it to build a profile of you.
The fonts, images and demo video are all served from zasmac.app, not from a CDN, so those do not reach out to anyone else.
Hosting. The site is served by Vercel. Like any web server, theirs processes the technical data needed to answer your request — your IP address and browser, transiently. We do not add anything on top of that, and we do not use it to profile anyone.

3. The app

Everything ZasMac remembers stays on your Mac: your soundpack, your sensitivity and cooldown settings, and your slap counter. It lives in macOS’s standard preferences store, on your disk. Nothing is uploaded, because there is nowhere for it to be uploaded to.

Specifically, and to be as blunt as possible about it:

ZasMac never records audio. It plays sound; it cannot capture it. There is no recording code in the app, and it does not declare a microphone usage description — which means macOS would refuse it microphone access even if it asked. It does not ask.
ZasMac never touches your camera. Same story: no camera code, no camera usage description, no access.
ZasMac sends no telemetry. No usage statistics, no crash reports, no “anonymous analytics”, no update pings.
There is no account. No login, no email required to use the app, no profile, nothing to leak.

4. The privileged helper

ZasMac installs a small helper that runs with system privileges. That is the thing macOS asks for your password about, once, at install. We would rather over-explain it than have you wonder.

The helper reads the accelerometer — the motion sensor built into your MacBook — works out how hard the machine was just hit, and sends that one number to the app over a local channel that does not leave your Mac. That is the entire job. It has no window, plays no sound, and contains no networking code of any kind. It does not read your files, watch your keyboard, or observe anything else about your Mac.

It has privileges because macOS will only hand accelerometer data to a privileged process. That is Apple’s rule. We kept the helper deliberately tiny for exactly this reason: every line of code running as root is a line worth being nervous about.

5. Paying for it

ZasMac is sold through Polar, who act as Merchant of Record. In plain terms: when you buy ZasMac, you are buying it from Polar. They take the payment, they issue the invoice, and they handle the VAT.

Polar receives your email address, your payment details and your country. Their handling of that is governed by their privacy policy.
We never see your card. Not the number, not the last four digits, nothing. It does not pass through us.
What we can see, through the Polar dashboard, is order metadata: that a purchase happened, the email attached to it, and the country it came from. We use it to answer support emails and issue refunds. That is all we use it for.
Your licence is tied to that email address, not to your Mac. That is why wiping your Mac does not lose it.

6. Your rights

Under the GDPR you can ask to access, correct, delete, port or object to the processing of your personal data. Since the only personal data in this whole arrangement is your purchase record, most requests are really requests to Polar — write to us at hello@zasmac.app and we will point you at the right place, or handle it ourselves where we can.

If you think we have handled your data badly, you can complain to your local data protection authority.

7. Children

ZasMac is not aimed at children, and we do not knowingly process data from anyone under 14.

8. Changes to this policy

If this changes, the date at the top changes with it. If it changes in a way that actually matters — if ZasMac ever starts collecting something — we will say so plainly here rather than quietly editing a sentence.