Sources and privacy

Privacy

This site does not ask you for an account and does not collect your data: it uses no cookies, has no analytics and sends nobody what you do in the apps.

Some choices stay in your browser, on this device: the sound effects, the chess level, the Sudoku grid you are working on, your city under the sky. They never reach us, and you can delete them in your browser’s settings.

The challenges you send to a friend are all in the link: a day or a code of a few letters, nothing about you.

The site is hosted by Cloudflare, which delivers it to your browser: like any server, to do so it receives the IP address and the technical details of the request (Cloudflare’s privacy policy).

“Log in” and “Sign up for free” take you to Algor’s site (cards.algoreducation.com), which has its own privacy policy.

Sources

The 3D models, the photos and the data made by others each have their author and their licence: you find them in the ⓘ of each app, beside what they show.

The software and the fonts of the site, with their licences: the software licences.