Privacy Policy

This Privacy Policy explains how MeanAbsoluteDeviationCalculator.com (“we”, “us”, “our”) handles information when you use our website and tools.

What we collect

• Usage data: basic, aggregated metrics (e.g., page views, approximate region, device type) to improve performance and UX.
• Server logs: standard web logs (IP address, user-agent, timestamps) for security and reliability.
• Messages you send: if you contact us via the contact page, we receive what you submit.

What we do not collect by default

• No account creation or passwords are required to use the calculator.
• No financial or government ID numbers.
• No file uploads are required to compute MAD.

How we use information

• Provide, maintain, and improve the calculator and site.
• Secure the service, prevent abuse, and troubleshoot issues.
• Respond to messages you send.

Features that touch your data locally

• Copy results: places a tab-separated table on your device’s clipboard so you can paste it elsewhere; we do not receive a copy by virtue of that action.
• Digits control: affects display rounding only; it does not imply data is stored with us.
• Multi-dataset input: each non-empty line is a separate dataset; inputs are processed to compute the mean and MAD for display.

Legal bases (EEA/UK)

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

Retention

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

Sharing

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

Your choices & rights

• You can use the calculator without creating an account.
• If you’re in the EEA/UK, you may have rights to access, correct, delete, or restrict processing of your personal data. To exercise rights, contact us via the contact page.
• California residents may have rights under the CCPA/CPRA. You can reach out to make a request.

Cookies & analytics

If we use analytics, we prefer privacy-respecting tools and minimal data. If any non-essential cookies are introduced, we will provide notice/controls where required by law.

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 site 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 (e.g., a site banner).

Contact

Questions about privacy? Reach us via the contact page.