Privacy

Last updated: September 2026

The short version

Every calculation happens in your browser. We do not store your date of birth, your birth time, your name or your results on a server. We do not write personal details into the page address, and we do not include them in analytics.

What you enter

You enter your date of birth, an optional first name, and an optional birth time and timezone. All of this stays on your device. Closing the page clears it. We never transmit your date of birth to our servers.

Sharing and downloads

Celebration cards and calendar files are generated on your device. Cards show your milestone, the celebration date and an optional first name — never your date of birth. When you choose to share, your device's native sharing interface opens; we never post on your behalf.

Analytics and advertising

With your permission, we use Google Analytics 4 to measure page visits and actions such as completed calculations, sharing and downloads. Google receives technical information about your browser and device and uses analytics cookies to distinguish visits. We do not send names, dates of birth, birth times or personalised result dates. Analytics scripts load only after you accept. You can reject analytics and still use every calculator feature, or change your choice using Analytics preferences in the footer.

We have prepared a single, clearly labelled advertising placement below the calculator, which will only load advertising scripts once a real publisher and ad unit are configured and appropriate consent has been given. No advertising scripts run on this page today, and no fake adverts are shown.

Google Analytics is provided by Google. For information about its processing, see Google’s privacy policy at policies.google.com/privacy. Advertising remains disabled.

Cookies

We remember your analytics choice in local storage under bb-analytics-consent-v1. After you accept, Google Analytics can set _ga and _ga_* cookies to distinguish visitors and sessions. Rejecting analytics prevents loading the Google tag; withdrawing consent disables further measurement and removes accessible Google Analytics cookies. Your calculator inputs are not stored in these cookies. Advertising consent will be handled separately if adverts are enabled.

Contact

This is a first version. If you have a privacy question, please use the support channels provided by the platform this site is built on.