Privacy Policy
Last updated: June 2026
1. Information We Collect
We may collect personal information such as your name and email address when you contact us, request a calculator, or purchase templates from the XCalcPro Store. Payments are handled by the Store and its payment provider. We also collect anonymous, aggregated usage data (via Vercel Web Analytics, which does not use cookies or track individuals) to help us improve our calculators.
2. How We Use Your Information
Your information is used to process transactions, deliver digital products, send important updates, and improve the user experience of our engineering tools. We do not sell or rent your personal information to third parties.
3. Calculation Data
The data you input into our web-based calculators (e.g., pipe sizes, flow rates, pressures) is processed locally in your browser or temporarily on our servers to generate the result. We do not permanently store or log proprietary engineering data inputted into the free calculators.
4. Cookies
XCalcPro stores your theme preference (light or dark mode) in your browser's local storage. Our analytics are cookieless, so we do not set advertising or cross-site tracking cookies. You can clear this data at any time through your browser settings.