Parent Info

What a parent should know

This page exists to be read in two minutes, before handing over the device.

What is not on this site

No accounts. No name, no email address, no date of birth is requested. There is nothing to create.
No purchases. No payments, no virtual currency, no content to unlock. A child can't spend anything here.
No chat. No messages, no forum, no public usernames. No contact with a stranger is possible.
No advertising. No banners, no videos, no sponsored links, as of today.
No gambling. Nothing is wagered, nothing is won.
No tracking. No analytics script, no request to a third-party server.

The daily challenge, without pressure

Each game offers a daily grid, and a “streak” counts the consecutive days on which your child completed at least one. There are no notifications, no reminders, no emails, no leaderboards: the streak is a number in the browser, visible only to you. Breaking it has no consequence, and “free play” mode remains unlimited.

What the games really ask for

Logic, arithmetic, and observation, not reflexes under pressure. A timer tracks solving time to set a personal best, but nothing ends because time runs out: you take as long as you want, and you can start over at any time.

A child who can count and reason can play alone. Futoshiki and Skyscrapers suit elementary-school ages well; Calcudoku takes a bit of mental math, and Kakuro takes addition and patience.

What stays on the device

If you accept the “preferences” category in the consent window, best times, the streak, and the last size of each game are written to the device's browser. Nothing is sent to us. If you decline, the games work the same way and remember nothing.

To erase everything: the “Manage my choices” button at the bottom of the page, then uncheck “Preferences”.

Why there is no age gate

An age gate exists to protect adult-only content or a gambling service, or to collect verifiable parental consent before gathering a child's personal information under the Children's Online Privacy Protection Act (COPPA). This site is none of those: it collects no personal information from anyone, children under 13 included. Adding a door would add friction without protecting anything, and would suggest there is something to protect.

Reach us

A question, a concern, a suggestion: [email protected]. See also the privacy policy and the accessibility page.

Last updated: August 26, 2026.