Privacy Policy

At OB Wheel Calculator, we believe your health information is yours alone. We built this tool with a privacy-first architecture to ensure your data remains secure and under your control.

Core Privacy Principles

Our commitment to privacy is simple and uncompromising:

  • No Health Data Storage: All dates, inputs, and results are processed exclusively on your device (client-side) and are never transmitted to our servers.
  • No Personal Information Required: We do not ask for your name, email address, or phone number to use our calculators.
  • No Data Selling: We never share, sell, or monetize your information.

Information We Do Not Collect

Because our calculator runs entirely in your browser, we do not collect or process:

  • Last Menstrual Period (LMP) dates
  • Ultrasound or IVF transfer dates
  • Calculated due dates or gestational ages
  • Any pregnancy-related health inputs

Information We Collect

Like most modern websites, we collect standard, anonymized usage data to maintain and improve our services. This includes:

  • Browser and Device Information: Such as your browser type, operating system, and screen resolution.
  • Analytics: Aggregated data on which pages are visited, time spent on the site, and general geographic location (e.g., country level). This data cannot identify you personally.

Cookies and Tracking

We use essential cookies strictly to ensure the basic functionality of the website and to measure aggregate traffic patterns. We do not use advertising cookies that follow you across the internet. You may configure your browser to reject all cookies, and our calculators will continue to function normally.

Third-Party Services

We may utilize standard analytics providers to monitor website performance. These providers operate under their own privacy policies and do not have access to any health data or calculator inputs you enter on our site.

Data Retention

Because we do not collect or store your calculator inputs, there is no personal health data to retain or delete. Any aggregate analytics data is kept only as long as necessary to understand broad website usage trends.

Medical Disclaimer Reference

Please remember that our tools are for educational purposes only and do not replace professional medical advice. For details, please review our full Medical Disclaimer.

Your Rights and Contact Information

If you have any questions or concerns about how we handle data, or if you wish to inquire about your privacy rights, we are here to help. Please reach out to our team via our Contact page.