Privacy Policy

Overview

Real Online Calculator ("we", "our", "us") is committed to protecting your privacy. This policy explains what information we collect, why we collect it, and how we use it. The short version: we collect very little data and we never sell it.

Calculations Are Private

All calculator computations run entirely in your web browser using JavaScript. No calculation inputs, results, or intermediate values are transmitted to our servers. Your financial figures, health metrics, and personal numbers never leave your device.

Information We Collect

We may collect the following when you use this site:

• Server logs — standard web server logs including your IP address, browser type, operating system, referring URL, and pages visited. Retained up to 30 days for security and diagnostics, not linked to personal identity.
• Analytics — aggregated, anonymized usage statistics (page views, session duration, device type). No cross-site tracking. No fingerprinting.
• Contact form submissions — if you contact us, we store your name, email address, and message content solely to respond to your inquiry.
• Local storage — your theme preference (light/dark) is stored in your browser's localStorage. This data never leaves your device.

Cookies

We do not use tracking cookies. We do not use advertising cookies. Your browser may store session data automatically, but we do not set persistent cookies for analytics or marketing purposes.

Third-Party Services

We do not embed third-party advertising networks. We do not share data with data brokers. Any third-party analytics provider we use is configured in cookieless, IP-anonymized mode with no cross-site data sharing.

Data Retention

Server logs are deleted after 30 days. Contact form messages are retained only as long as necessary to resolve your inquiry, and no longer than 12 months. We do not build user profiles.

Your Rights

Depending on your location, you may have rights to access, correct, or delete personal data we hold about you. Contact us to exercise these rights and we will respond within 30 days.

Children's Privacy

This site is not directed at children under 13. We do not knowingly collect personal data from children. If you believe a child has submitted personal information to us, please contact us and we will delete it promptly.

Changes to This Policy

We may update this policy from time to time. The "Last updated" date at the top reflects the most recent revision. Continued use of the site after changes constitutes acceptance of the updated policy.

Contact

Privacy questions or requests: contact us here.