Privacy Policy

The short version

Your calculator inputs never leave your browser. We collect almost nothing, and nothing we collect is sold.

Calculator data

All calculations on concretecalculator.xyz run entirely client-side in your browser. The dimensions, prices and project details you enter are not transmitted to our servers, stored, or shared.

Contact form

If you use the contact form, the name, email address and message you submit are delivered to us via our form provider (Web3Forms) solely so we can reply. We do not add you to mailing lists or share this data.

If you subscribe to updates, your email address is used only to send occasional site news. Every email includes an unsubscribe link.

Analytics and cookies

We may use privacy-respecting, aggregate analytics to understand which calculators are useful (page views, referrers, country-level location). We do not use advertising trackers or sell data. Essential cookies, where used, support basic site function only.

Third-party services

The Site is hosted on Vercel and loads fonts from Google Fonts; these providers may process standard request metadata (such as IP addresses) to serve content. See their respective privacy policies for details.

Your rights

You may request access to or deletion of any personal data we hold (typically only contact-form emails) by writing to hello@concretecalculator.xyz.

Changes

Updates to this policy will be posted here with a revised date.