Privacy Policy

Last updated: October 2026

Calculator data

The calculators run entirely in your browser. Values you enter are stored only in your browser's local storage (so your game is kept next time) and in the page address when you use a share link. We do not receive or store them. You can clear them at any time with the Reset button or by clearing your browser's site data.

Server logs

Like most websites, our hosting provider may automatically log basic technical information such as IP address, browser type and pages requested, for security and performance purposes.

Advertising and cookies

We may show ads served by third parties, including Google. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this and/or other sites on the Internet. You can opt out of personalised advertising by visiting Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. Where required by law (for example in the UK and EU), we will ask for your consent before setting non-essential cookies.

Analytics

We may use privacy-respecting analytics to understand which pages are useful. Any such tool will be listed here.

Children

This site is not directed at children under 13 and we do not knowingly collect their personal information.

Contact

Questions about this policy: hello@example.com.