What your child is playing

Mathroom is a free math practice game for grades 1 through 9. Your child answers math problems to help a pair of cartoon hosts fix up their world, collecting creatures and earning in game rewards along the way.

That's the whole thing. No sign up, no ads, nothing to buy.

Open Mathroom

The short version

• Free to use. No purchase, no subscription, no in app purchases, and no ads.
• No accounts. No email address, no password, nothing to sign up for.
• No student data collected. Progress is stored on the device.
• There's nothing to cancel, because there was never anything to start.

What it will never ask you for

Worth being specific, because you've probably been burned by a "free" game before.

Your card. There is no checkout, no payment field, and no purchase of any kind anywhere in the product. Not hidden in a menu, not behind a boss, not at level 30.

Your email. Or your child's. There's no account to create.

Your patience with ads. There are none. Nothing to watch, nothing to skip, nothing to accidentally tap while reaching for an answer.

The game has its own currencies: slime bucks downstairs, star tokens upstairs. The game's currencies are earned by doing math and cannot be bought with money. There's no exchange rate, because there's nothing to exchange.

Is it safe?

Nothing about your students leaves the room. Progress is stored in the browser on the device they played on. It isn't sent anywhere, because there's nowhere for it to be sent.

Your child chooses a name or initials and a school grade. An optional U.S. state preference personalizes local examples. These preferences stay on the device and in any backup you choose to export; the app does not request or infer device location.

No one can contact your child. There's no chat, no messaging, no friend list, no public leaderboard, and no public identity. Nothing is ever shared automatically.

No advertising trackers and no marketing profiles. Everything it loads comes from its own site.

One thing to know about saved progress

This is the practical thing most worth your attention.

Because progress is stored on the device, clearing browser data can remove it unless a backup has been exported. A phone cleanup, a "clear cache" from a help article, a new browser. Any of those can wipe a collection your child worked weeks for.

The fix takes about ten seconds. With your child selected as the player, open Menu, then Save and choose Save a Backup File. That downloads one small file with their progress. Load a Backup File brings it back, on that device or a different one.

One backup at the end of each week is plenty. Do it before any device cleanup.

Is my child actually learning?

Questions come from the grade track you or your child chooses. Choose the learner’s current grade, 1 through 9, to practice math from the previous school year. Grade 1 practices kindergarten math. Difficulty adjusts within that track to stay in a useful range.

Help is unlimited and never penalised. If your child gets something wrong, they get another try on the same problem. If they open the worked steps, they see the whole method, and that round becomes practice rather than a score, so nothing is lost by asking for help. A fresh problem comes along to try the method on.

Nothing is timed in ordinary practice. Your child can take as long as they need.

A wrong math answer invites another try. Earned currency and collectibles are kept. Action games also have health and hazards, so a platformer level can need another attempt.

Progress grows through practice. The ordinary journey earns its rewards and unlocks through play. There is no paid shortcut or checkout.

Seeing what they've done

Open Menu, then Report. It prints.

Topics show a numerical 0 to 100% mastery value. Skills and standards show bands: Not started, Emerging, Developing, Mastered. Practised skills are mapped to Common Core State Standards for Mathematics codes. The report describes practice coverage of the listed standards, not a formal assessment.

The report summarises practice evidence. It is not a grade, a diagnosis, or a placement recommendation.

One detail worth knowing: This Player shows an earned rank; Whole Device lists the local player names in the current world. Neither report is uploaded automatically.

Sitting down with them

The single most useful thing you can do takes one question.

When they get something right, ask: "How did you decide?"

You'll hear whether they reasoned it out, spotted a pattern, or guessed well, and any of those opens a real conversation. If they're not sure, open the worked steps together. There's a calculator and a drawing pad built in, free from the first question, and both work for a side by side conversation.

You don't need to be good at math to do this. You only need to be curious about how they got there.

Two worlds

At the front door your child picks one: the Math Attic with Lacy and Pearl, or the Math Basement with Riff and Thunk. Different artwork, music, companions, and stories.

Same math, same help, same free. Pick whichever looks more fun, and either can be switched later.

Questions

Email hello@mathroom.fun. A person reads it.

Links: For teachers

Free, no sign up, nothing to cancel. Open it and let them show you.

https://mathroom.fun/for-parents