Privacy Policy

ExteriorCalc is committed to transparent, privacy-first web utilities. We do not require accounts, logins, or personal profile creation to use our calculators.

1. Information We Do Not Collect

When you input wall dimensions, gutter lengths, slope pitches, or attic square footage into our calculation tools:

• All calculation operations execute locally in your web browser client.
• We do not store, catalog, or transmit your individual project dimensions to external servers.
• We do not sell, rent, or trade user data to third-party advertisers.

2. Local Storage & Preferences

We may store non-sensitive display preferences (such as your preferred dark or light theme mode and unit selections) in your local web browser storage (`localStorage`) to provide a seamless user experience across sessions.

3. Anonymous Analytics

We may collect aggregated, non-personally identifiable technical telemetry (such as page visit volumes, browser family, and general referral sources) to monitor server performance, optimize tool responsiveness, and discover which calculators need expansion.