Privacy and Your Birth Date
How the calculator keeps birth dates in browser memory, what sharing includes, and what hosting requests may reveal.
Birth dates stay in this page
Calculation happens in your browser. The app keeps the date only in the current calculator’s memory. It does not put it in URLs, cookies, local storage, session storage, analytics, or network requests. Reset clears the app’s input and result; reloading the page clears the component state. Your browser may keep a page in memory when you navigate back to it. Your browser may independently offer autofill according to its own settings.
Sharing, downloads, and printing
Shared text contains card names, the method, and a static group-page link. PNG downloads and the print layout contain the group and a short theme, not the date or calculation. A file or message you choose to save or send is then handled by your device or chosen app.
Hosting still receives web requests
The hosting provider receives ordinary requests to load pages and assets and may process IP addresses, user-agent information, and operational logs under its policies. The site includes a Google Analytics tag for website usage measurement. If it loads under your browser and the site’s security settings, Google may receive usage and device information and use cookies according to its settings. The calculator does not send the entered birth date to this tag. The presence of analytics means visits should not be treated as entirely private; browser privacy controls may limit these requests.
Questions and changes
If you contact the operator by email, your email provider and the recipient process the message you send. Do not include a real birth date or sensitive personal information in a bug report. This policy describes V1; any future change to tracking or data handling should be reflected here before it is enabled.