Privacy policy

Short version: we do not collect anything you type.

Last updated: October 21, 2026

What we collect

Nothing. The calculators run entirely in your browser. There are no accounts, no analytics, no advertising trackers and no cookies.

What is stored on your device

Your chosen language, theme, recently used calculators and calculation history are saved in your browser so the site remembers them. They never leave your device. You can remove them with the Clear buttons or in your browser settings.

Changes

If this policy changes, the new version will be published on this page with its date.