Concrete Calculator Privacy Policy

Last updated: November 2, 2026

Concrete Calculator (a Chrome extension) does not collect, transmit or share any personal data.

What the extension stores

Your last-used settings (unit, shape, sizes, waste allowance, bag size and optional prices) are saved inside the extension on your own device, so the form is pre-filled next time. This information never leaves your device. You can remove it by uninstalling the extension.

Network access

The extension makes no network requests. All calculations run locally in the popup.

Permissions

The extension requests no browser permissions.

Links

The popup contains one link to saasnm.com. Clicking it opens this website in a new tab, where this site’s own privacy policy applies.

Changes

If this policy changes, the date above will be updated.

Contact

Div John, via the contact page on saasnm.com.