Privacy policy

This service has no accounts and does not collect information that could identify you. Even if it were breached, there would be nothing to take. We hold no name, contact or address, and anything you leave stays on this device.

Your board color and streak stay only on this device (browser storage). They are not sent to a server and disappear when you clear your browser data.

• The equations you guess are never sent anywhere. Progress is not saved either, so reopening the page starts a fresh round.
• When you solve today's puzzle, your number of tries goes to the shared leaderboard service (ranks.gwirae.com). That service sets a cookie to recognize this browser. A name is attached only if you create an account there, and its own policy has the details.
• The server only counts anonymous metrics: the date, a step name such as opened, finished or shared, your interface language and a rough referral label. It does not record your guesses or the answer.
• This game may show Google AdSense ads below the result to cover running costs. When it does, Google may use cookies or an ad identifier, under Google's own policy. Your game itself is still never sent to a server.

Retention and deletion

Anything saved on your device disappears when you clear your browser data. The anonymous counts on the server contain nothing that could be traced back to you.

This site is served through Cloudflare, which automatically injects a visit-tracking script into our pages. We did not add it, and we have set the site to block it in your browser, so that tracking does not go out. The tag itself is still inserted by the layer in front of us, so we are telling you. This app's address sets no cookies. If you post a score to the leaderboard, the leaderboard service (ranks.gwirae.com) sets two cookies (rk_k and rk_s) to recognize your device. Details are in its privacy policy at ranks.gwirae.com/privacy.

Contact

Reach us at ok981121@naver.com.