Privacy Policy

How we collect, use, and protect your information

🔒 Your Privacy Matters

We are committed to protecting your privacy. No personal health information entered into our calculators is stored, tracked, or transmitted to third parties.

Information We Collect

Calculator Data

When you use our medical calculators (CHA2DS2-VASc, HAS-BLED, HEART, Wells), all calculations are performed locally in your browser. We do not store, transmit, or have access to any health information you enter into the calculators.

Automatically Collected Information

Like most websites, we automatically collect certain information when you visit our site:

  • IP address and general location information
  • Browser type and version
  • Operating system
  • Pages visited and time spent on site
  • Referring website
  • Date and time of visits

This information is collected through standard web server logs and analytics tools and does not include personal health information.

How We Use Information

We use the automatically collected information to:

  • Improve website performance and user experience
  • Understand how visitors use our calculators
  • Identify and fix technical issues
  • Generate anonymous usage statistics
  • Ensure website security

We never use this information to identify individual users or link it to health information entered in calculators.

Cookies and Tracking

Our website may use cookies and similar technologies for:

  • Essential cookies: Required for basic website functionality
  • Analytics cookies: Help us understand how visitors use our site
  • Performance cookies: Allow us to improve site speed and functionality

You can control cookie settings through your browser preferences. Disabling cookies may affect some website functionality but will not prevent you from using the calculators.

Third-Party Services

We may use third-party services for:

  • Web Analytics: To understand site usage patterns
  • Content Delivery: To improve site performance
  • Security: To protect against malicious activity

These services may collect information about your visit but do not have access to health information entered in our calculators. We carefully select third-party services that maintain appropriate privacy standards.

Data Security

We implement appropriate security measures to protect information, including:

  • HTTPS encryption for all website communications
  • Regular security updates and monitoring
  • Secure hosting infrastructure
  • Limited access to any collected data

Since calculator data is processed locally in your browser and not transmitted to our servers, your health information remains private and secure.

Your Rights and Choices

You have the right to:

  • Use our calculators without providing personal information
  • Control cookie settings in your browser
  • Request information about data we may have collected
  • Report privacy concerns or questions

Children's Privacy

Our website is not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If we become aware that we have collected personal information from a child under 13, we will take steps to delete such information.

International Users

This website is hosted in the United States. If you are accessing our site from outside the United States, please be aware that your information may be transferred to, stored, and processed in the United States where our servers are located.

Changes to This Privacy Policy

We may update this privacy policy from time to time to reflect changes in our practices or legal requirements. We will post any changes on this page and update the "Last Updated" date below. We encourage you to review this policy periodically.

Contact Information

If you have questions about this privacy policy or our privacy practices, please contact us through the information provided on our website.

Summary

Bottom line: We respect your privacy. Calculator data stays on your device, we collect minimal anonymous usage data to improve the site, and we use industry-standard security practices to protect any information we do collect.

Last updated: September 15, 2025