Privacy Policy

Information We Collect

We collect minimal information to provide and improve our calculator services. All calculations are performed locally in your browser - we never see or store your calculation inputs or results.

Information we may collect includes: device type, browser type, pages visited, time spent on pages, referring website, and general location (city/country level only). We do not collect personally identifiable information unless you choose to contact us.

Analytics

We use privacy-friendly analytics to understand how visitors use our calculators. This helps us improve the tools and create new ones that people actually need.

Our analytics provider collects anonymous usage data including pages viewed, time on site, and traffic sources. No personal information is collected, and all data is aggregated.

Cookies

We use cookies to remember your dark mode preference and provide essential functionality. These are first-party cookies stored only on your device.

Third-party cookies may be set by our advertising partners (see Advertising section below). You can disable cookies in your browser settings, though some features may not work properly.

Advertising

We display contextual advertisements to support this free service. Ad partners may use cookies and similar technologies to show you relevant ads based on your browsing activity.

We work with reputable ad networks that comply with industry standards. You can opt out of personalized advertising through your browser settings or industry opt-out tools like NAI or DAA.

Your Rights (GDPR & CCPA)

If you're in the EU or California, you have specific privacy rights:

• Right to know what data we collect and how we use it
• Right to request deletion of your data
• Right to opt out of data sales (we don't sell your data)
• Right to non-discrimination for exercising your privacy rights

Do Not Sell My Personal Information

We do not sell, rent, or trade your personal information to third parties. We may share anonymized, aggregated data with partners for analytics purposes, but this data cannot identify you individually.

Data Retention

Analytics data is retained for 26 months. Your theme preference is stored indefinitely in browser storage unless you clear it. Since we don't collect personal information in the first place, there's minimal data to retain.

Changes to This Policy

We may update this privacy policy from time to time. Significant changes will be noted at the top of this page with a new "Last updated" date. Continued use of our calculators after changes constitutes acceptance.

Contact

Questions about this privacy policy? Contact us through the About page. We'll respond within 30 days to privacy-related inquiries.