๐ŸŒป Math Farm โ€” a privacy note for grown-ups

Math Farm is a small, invite-only math game. Kids can only join with a code from a supervising grown-up โ€” a family member, tutor, or teacher โ€” and that grown-up's account hosts every farm and reviews the math practice. This page explains โ€” in plain words โ€” what the game stores and what it never does.

What we ask a child for

A username, a password, a farmer nickname, and a favorite color. That's the whole list. We never ask for an email address, a real name, an age or birthdate, a phone number, a school name, a photo, or a location. Grown-ups: we suggest having kids pick fun farm nicknames when they sign up.

What the game keeps while they play

Math practice results (which topics, which answers were right โ€” so the game and their grown-up can help), in-game progress like coins, crops, stickers and badges, and simple counts of which game features get used (a number per day โ€” never what anyone typed). Chat messages are never saved โ€” they exist only during play and are filtered for kind words.

Farm friends: a child adds a friend by their exact username (the friend must accept โ€” there is no search or browsing of other children). They may jot a short private note or nickname about a friend; it is filtered for kind words, shown only to the child who wrote it, and deleted with either account. Who is online right now is held only in memory to show a friend's "online" dot โ€” it is never written down. A child can "knock" to ask a friend who is home on their own farm for a quick visit; the request and the yes/no answer live only in memory for a few seconds and are never stored. A child can also ask to join a friend's farm as a farmer โ€” that decision always belongs to the farm's supervising grown-up. The ask is kept only while it waits (two weeks at the most), and if the grown-up says no, nothing is shown or stored โ€” the ask simply lapses. Good news that arrives while a child is offline ("you were welcomed to the farm!") is kept as a short note that is shown once at their next sign-in and then deleted.

Mini-games at the plaza game tables (Omok, Yut Nori, and a memory game): the game keeps a simple play record per child โ€” wins, losses and points, plus how many free plays are left today. These are just numbers tied to the game account and are shown the same way badges are: to the child, to farm-mates who walk up to look at their awards, and to the supervising grown-up. There are no rankings and no leaderboards โ€” nobody is compared to anybody. The supervising grown-up controls how many plays a day the tables allow (or turns them off entirely), and the record is deleted with the account.

On a "Beach Cleanup Day" event, the game keeps one shared daily number for the whole town โ€” how many litter pieces everyone cleaned together โ€” so all the farms can cheer for a common goal. Each farm also keeps its own daily count, shown only to that farm's supervising grown-up on their classroom page so they can cheer their farms on. Both are just counts: no names, nothing that says which child did what. Children never see each other across farms โ€” only the shared town number.

A supervising grown-up may also choose per-student practice settings (which math topics and levels a child gets). Those choices are stored on the child's account and follow them between farms; only the grown-up who manages that child (the one whose invite code they signed up with) can change them or reset the child's password, and they are deleted with the account.

What we never do

How long things are kept

A child's written work on missed problems is removed 30 days after their grown-up reviews it (180 days at most). Old sign-in sessions are cleared after 90 days of inactivity. When an account is deleted, the child's records โ€” practice history, progress, stickers, everything โ€” are deleted with it.

Questions or deletion requests

Ask the supervising grown-up who runs your farm, or contact the game's operator โ€” deletion of a player account and all its data is available on request.