Privacy
On your phone
Your language, the board you are in the middle of and your last twenty boards are kept in your browser's storage, on your device only. Clearing the site's data removes them. Nothing identifies you.
On the server
The server receives the board's id, the square you opened and the answer you chose, so that it can tell you whether you were right. It keeps none of it. There are no accounts, no cookies and no advertising.
The challenge link
A link you share carries the board's id and your score. Anyone with the link can open it. It carries nothing else.
Visits
Sapivin uses Cloudflare Web Analytics to count visits. It sets no cookie, does not fingerprint and stores no IP address; it sees the page address, the referring page, the browser type and the country.
Contact
Parallel Arc Industries, Stockholm. parallelarcindustries.com.