Privacy Policy

Overview

Calcooo is a static website. The calculators on this site run entirely in your web browser — the numbers you type into a calculator are never transmitted to, or processed by, any Calcooo server.

Information we do not collect

We do not require an account, and we do not collect the values you enter into any calculator. There are no server-side logs of your calculator inputs or results.

Local storage ("Recent calculations")

Some calculators offer an optional "Recent calculations" history. This history is saved only in your own browser's local storage, on your own device. It is never uploaded anywhere, and you can clear it at any time using the "Clear history" button on the relevant calculator page, or by clearing your browser's site data.

Theme preference

If you switch between light and dark mode, that preference is saved in your browser's local storage so it's remembered on your next visit. This is not shared with us or any third party.

Cookies and analytics

See our Cookie Policy for details on any cookies used by this site, including for advertising or analytics purposes where applicable.

Advertising

This site is designed to be compatible with third-party advertising networks (such as Google AdSense). Advertising partners may use their own cookies or similar technologies to serve relevant ads; please refer to your advertising provider's own privacy policy for details on their data practices.

Changes to this policy

We may update this privacy policy from time to time. Continued use of the site after changes are posted constitutes acceptance of the updated policy.

Contact

Questions about this policy can be directed to us via the Contact page.