🤰BumpMath

Privacy Policy

Last updated: April 2026

BumpMath ("we," "our," or "us") operates the website bumpmath.com. This Privacy Policy explains how we collect, use, and protect information when you use our site.

1. Information We Collect

Calculator Inputs: Dates and values you enter into our calculators (e.g., last menstrual period, cycle length) are processed entirely in your browser. We do not transmit or store this data on our servers.

Checklist Progress:Interactive checklists save your progress using your browser's local storage. This data never leaves your device.

Analytics: We may use privacy-focused analytics tools to collect aggregated, anonymous usage data such as page views, device type, and referral source. This data cannot identify you personally.

2. Cookies

BumpMath may use cookies for essential site functionality and analytics. Third-party advertising partners may also set cookies to serve relevant ads. You can manage cookie preferences through your browser settings.

3. Advertising

We may display third-party advertisements to support the free operation of BumpMath. Ad networks may use cookies or similar technologies to serve ads based on your browsing activity. We do not sell your personal information to advertisers.

4. Third-Party Links

Our site may contain links to external websites. We are not responsible for the privacy practices of those sites and encourage you to review their privacy policies.

5. Children's Privacy

BumpMath is intended for adults. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal data, please contact us so we can remove it.

6. Data Security

We take reasonable measures to protect data processed through our site. However, no internet transmission is 100% secure. We encourage you not to enter sensitive personal health information beyond what is needed for our calculators.

7. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date.

8. Contact Us

If you have questions about this Privacy Policy, please contact us at hello@bumpmath.com.