Privacy Policy

Last updated: May 21, 2026

This policy explains what happens to your data when you use Prime Calculation. The short version: we keep almost nothing. You do not need an account, the calculators run in your browser, and we do not show ads or sell data.

Information we collect

We do not ask you to sign up, and we do not collect names, email addresses, or payment details. You can use every tool on this site without telling us who you are.

How the calculators handle your inputs

When your browser has JavaScript turned on, each calculator runs on your device. The numbers you type stay in your browser and are not sent to us.

If JavaScript is turned off, the form sends your values to our server so it can build the result page. Those values may appear in routine server request records. We do not use them for anything beyond returning your result, and we do not link them to you.

Cookies and tracking

We do not set cookies, and we do not use analytics or advertising trackers. There is no pixel, no fingerprinting script, and no third-party tag watching what you do.

Hosting and server logs

Our hosting provider, Cloudflare, delivers this site and keeps standard request records to run the service and block abuse. These records can include your IP address, the page you requested, your browser type, and the time of the request. This is normal for any website and is handled under Cloudflare's own privacy terms.

Third parties

We do not share, rent, or sell your data. Some pages link to outside sources we cite. When you follow one of those links, the other site decides how it treats your data, so review its own policy.

Children's privacy

This site is for general use and is not aimed at children under 13. We do not knowingly collect data from children.

Changes to this policy

We may update this policy as the site changes. When we do, we will revise the date at the top of this page.

Contact

Prime Calculation operates this website. If we add a contact channel, we will list it on this page. See also our Terms of Use and Legal Information.