Privacy policy

This policy explains what Calvix collects, what it does not, and what third parties may collect when you use the site.

The numbers you type

Every calculator runs entirely in your browser. The values you enter are used to compute a result on your own device and are never transmitted to us, never written to a server, and never stored. Closing the tab discards them. We could not retrieve what you typed even if asked to.

What we collect directly

Nothing that identifies you. We do not operate accounts, do not ask for an email address, and do not set cookies of our own.

Advertising

This site is funded by advertising supplied by Google AdSense. Google and its partners may use cookies and similar technologies to serve ads based on your prior visits to this and other websites, and to measure whether those ads were seen or clicked.

If you are in the European Economic Area, the United Kingdom or Switzerland, personalised advertising is only used where you have consented through the consent prompt shown on your first visit. You can change that choice at any time using the link in the site footer.

You can opt out of personalised advertising across all participating sites through Google Ads Settings, and review how Google handles data at google.com/policies/technologies/partner-sites.

Analytics

We use privacy-preserving aggregate analytics to count page views and measure loading performance. This records the page visited, approximate country, and anonymised technical details such as browser and connection speed. It does not set identifying cookies and cannot be used to recognise you across sites or sessions.

Data we share

We do not sell, rent or share personal data, because we do not collect any. The only third parties involved are the advertising and analytics providers described above, each acting under their own privacy policies.

Children

This site is not directed at children under 13 and we do not knowingly collect information from them.

Your rights

Depending on where you live you may have the right to access, correct or delete personal data held about you, and to withdraw consent for personalised advertising. Since we hold no personal data ourselves, most such requests are best directed to Google. For anything else, please contact us.

Changes

If this policy changes materially, the date at the top of this page will be updated. Continued use of the site after a change indicates acceptance of the revised policy.