Privacy
Short version: the game collects nothing about you or your child. There is no account, no sign-in, no advertising and no analytics.
What is stored
Your rank, the elements you have found, your stickers and your star scores are saved in your own browser's local storage, on your own device. Prime Smash saves the level you last played, its sound and take-your-time switches and your best score for each level the same way. Tau Ceti Run saves your best time on each track, your view and its sound, calm-mode and Race switches the same way. Cellular Pandemic saves which maps you have cleared, your best time on each, what is in your Body Book, which story chapters you have read, and its sound, calm-mode and difficulty switches the same way. Math-alas saves, for each player, how well each topic is going (the last 20 answers on it), the Tricky Ones it is keeping to come back to, its badges and how many papers and warm-ups you have finished the same way; it saves no score for speed. A challenge code holds only a paper type, a seed and one percentage: it is typed or read out, and nothing is sent. Each player on the device (up to four, and a Guest) has their own saves, under the name the player typed in, kept in the same place: nothing about a player is sent anywhere either. A Guest's progress is kept only until the tab is closed. The hub also keeps, for each player, a count of the days they have visited, in the same place. That data never leaves the device and is never sent anywhere. Clearing your browser's site data for this domain erases all of it.
What is not collected
- No names, emails, ages or any other personal details — the game never asks.
- No cookies are set.
- No analytics, tracking pixels, fingerprinting or advertising of any kind.
- No account, no login, no leaderboard, no chat, no user-generated content.
The one third-party request
The page loads two typefaces from Google Fonts. That request tells Google's servers your device's IP address and browser, which is how any web request works. Nothing else about you is shared, and once the fonts are cached the request stops repeating. If you install the game to your home screen it plays fully offline and makes no outside requests at all.
Children
This game is built for roughly ages 7 to 12. Because it collects no personal information at all, there is nothing to consent to, request, or delete on a child's behalf beyond clearing your own browser data.
Changes
If this ever changes — for example if analytics were added — this page would say so before it happened, and the change would be noted in the game's changelog.