Cookies Policy

Last updated: January 2026

What Are Cookies?

Cookies are small data files stored on your device by websites you visit. localStorage is a similar browser mechanism that persists data across sessions.

What We Use

• Preferences (localStorage): Your dark/light mode selection is stored so it persists across visits.
• Calculator State (localStorage): Your calculator inputs and saved reports are stored so you can resume your work.
• Google Analytics cookies: Anonymized aggregate site-usage measurement.
• Google AdSense cookies: To serve relevant advertisements.

How To Disable

You can disable cookies in your browser settings. Doing so will impact site functionality — your calculator state and theme preference will not persist.

Clearing Your Data

Clearing your browser storage removes all ConstrCalc data from your device. It cannot be recovered — export a JSON snapshot from the calculator first if you want to keep an estimate.

Third-Party Cookies

Third parties (Google, CDN providers) set their own cookies per their policies. Review Google's cookie policy at policies.google.com/technologies/cookies.