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Privacy Policy

We keep this short because there is not much to say. The Doubling Time Calculator runs in your browser and does not need your data.

Last updated: May 12, 2026

What we collect

The values you type into the calculator never leave your device. There is no submission, no logging, and no server side processing of any input.

We may collect basic, anonymized analytics about pages viewed and the device type used, only to improve the site. We do not link any of this to your identity.

Cookies

We do not set advertising cookies. Any cookies present are limited to those needed for the site to function or for privacy-respecting analytics.

Third party services

We load fonts from a public CDN and a small JavaScript framework from a public CDN. These providers may receive standard request metadata such as your IP address and user agent, which is normal for any modern web page.

Your rights

Because we do not collect personal data, there is nothing for us to delete on request. If you contact us by email, the contents of your email remain with you and us until either party deletes them.