Privacy Policy

This Privacy Policy explains how Ratio Solver & Proportion Calculator (“we”, “us”, “our”) handles information when you use ratiosolver.com (the “Service”).

What we collect

• Usage data (aggregated): basic metrics such as page views, device type, approximate region, and performance signals. This helps us keep the calculator fast and reliable (especially the real-time updates).
• Server logs: standard web logs (IP address, user-agent, timestamps, requested pages) used for security, diagnostics, and abuse prevention.
• Messages you send: if you contact us via the contact page, we receive what you submit.

What we do not collect by default

• No accounts or passwords are required to use the ratio solver.
• No payment card data, banking details, or government ID numbers.
• We do not require you to upload documents or create a saved “workspace.” The numbers you enter (A, B, C, D, and decimals setting) are intended to calculate results on the page.

Clipboard (“Share Result”)

If you use Share Result, your browser may copy a short summary of your proportion (for example, the solved missing value or true/false check) to your clipboard so you can paste it elsewhere. We do not receive your clipboard contents unless you choose to send them to us.

How we use information

• Provide, maintain, and improve the Service (calculator, content, and performance)
• Secure the Service, prevent abuse, and troubleshoot issues
• Respond to messages you send

Legal bases (EEA/UK)

• Legitimate interests for basic analytics, security, and service improvement
• Consent where required (e.g., non-essential cookies, if introduced)

Cookies & analytics

We may use cookies or similar technologies for essential site functionality and (optionally) analytics. If non-essential cookies are introduced, we will provide notice and controls where required by law.

Sharing

We do not sell your personal information. We may share limited data with trusted service providers that help us run the site (e.g., hosting, security, analytics), bound by confidentiality and data-protection obligations. We may disclose information if required by law or to protect rights, safety, and integrity of the Service.

Retention

Contact messages are kept as long as needed to respond and maintain records. Logs and analytics are kept for a limited period consistent with security and operational needs.

Your choices & rights

• You can use the Service without creating an account.
• You can request access, correction, or deletion of personal information you submitted via the contact form.
• If your jurisdiction provides additional rights, you may request to exercise them via the contact page.

Data security

We take reasonable technical and organizational measures to protect information. No internet service is 100% secure, but we work to keep risk low.

Children

This Service is not directed to children under 13 (or the age required by local law). If you believe a child provided personal information, please contact us so we can delete it.

Changes

We may update this policy from time to time. If changes are material, we’ll take reasonable steps to notify you (for example, a site notice).

Contact

Questions about privacy? Reach us via the contact page.

Last updated: November 30, 2025