Privacy Policy

1. Zero Personal or Project Data Stored on Servers

When you use Try Concrete Calculator, all calculations—including dimensional inputs (length, width, thickness, diameter), bag selections, cost prices, project titles, and contractor names—are executed entirely within your device's web browser via client-side JavaScript.

We do not transmit, harvest, sell, or store your project dimensions, contractor client notes, or material estimates on any remote server or database.

2. Local Storage and URL Parameters

Our website uses browser localStorage solely for functional user preferences:

• Theme Preference: We store a small key (theme: 'dark' or 'light') so your preferred visual mode is remembered between visits.
• Shareable URL Parameters: If you use our URL sharing capability, dimensions are encoded directly into the browser address bar query string (e.g., ?shape=rectangular&l=12&w=10). This state is held entirely in your browser history and is not logged by our web servers.

3. Cookies, Web Analytics & Advertising

We use the following third-party services that may set cookies or collect anonymized data:

• Google Analytics (GA4): We use Google Analytics to understand aggregate site traffic — including page views, session duration, and general geographic region. This data is anonymized and does not include your concrete calculation inputs. You can opt out via Google's opt-out tool.
• Google AdSense: This site displays advertisements served by Google AdSense. Google may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising by visiting Google Ad Settings.

You can disable cookies at any time through your browser settings without affecting the core functionality of our concrete calculation tools.

4. Third-Party Links and Contractor Partners

Our service may contain outbound links to third-party hardware retailers, tool manufacturers, or contractor referral networks (such as ready-mix concrete suppliers). If you click on a third-party link, you will be directed to that third party's site.

We strongly advise you to review the privacy policies of any third-party websites you visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.

5. Your Privacy Rights (GDPR & CCPA)

Depending on your jurisdiction, you may have rights under data privacy laws such as the General Data Protection Regulation (GDPR) or California Consumer Privacy Act (CCPA):

• The right to know what personal information is collected (as stated, we collect no personal calculation data).
• The right to request deletion of any personal data submitted through our contact form.
• The right not to be discriminated against for exercising your privacy rights.

6. Contact Us About Your Privacy

If you have any questions, concerns, or requests regarding this Privacy Policy, please contact our privacy compliance team: