Privacy Policy

Last updated: March 2026

Information We Collect

We collect minimal data to improve your experience:

• Usage Data: Pages visited, time on site, and interactions with calculators (via PostHog analytics).
• Cookies: Essential cookies for site functionality and analytics cookies for usage tracking.
• Device Information: Browser type, operating system, and screen resolution for optimization.

We do not collect personal information such as names, emails, or addresses unless you voluntarily provide them. All calculator inputs are processed locally in your browser.

Third-Party Services

• Google AdSense: Serves advertisements. Google may use cookies to personalize ads. See Google's Privacy Policy.
• PostHog: Analytics for understanding site usage. See PostHog's Privacy Policy.

How We Use Your Data

• To provide and maintain our free construction calculators
• To analyze usage patterns and improve tool accuracy
• To display relevant advertisements

Your Rights (GDPR / CCPA)

Depending on your location, you may have the right to:

• Access the personal data we hold about you
• Request deletion of your data
• Opt out of analytics tracking (disable cookies in browser settings)
• Opt out of personalized advertising (visit Google Ad Settings)

Data Retention

Analytics data is retained for 12 months. Cookie consent preferences are stored locally in your browser.

Children's Privacy

Our tools are not directed at children under 13. We do not knowingly collect data from children.

Contact

For privacy-related inquiries, email us at contact@diycalc.co.