Your privacy

What we do not collect

• The numbers you type into a calculator. They are used in your browser and are not sent to us or to anyone else.
• An account, a name, an email address or a phone number. There is no sign-up.
• Advertising or tracking cookies. There are no ads and we do not use analytics at the moment of writing.

What is stored on your device

Up to three small settings in your browser's local storage, only if you change them: your theme (duck.theme), your currency (duck.currency) and your language (duck.lang). They never leave your device and you can erase them on the Settings page.

What the host can see

The site is served by Cloudflare. Like any website host, it processes the technical details of each request, such as your IP address and the page you asked for, to deliver the page and protect it from abuse. We do not use that to identify you.

Feedback and requests

The feedback and request forms do not send anything by themselves. They open your own email app with the message ready, and nothing is sent until you press send there. If you send one, we get the message and the address you sent it from, and we use it only to reply and to improve the site.

Changes

If this changes, for example if analytics or tips are added, this page will be updated first and the date at the bottom of every page will change. Questions? Send feedback.