A comparison written by one of the two

Clareza Academy vs Math Mammoth

We make one of these, so read this the way you would read any comparison written by a seller. What we can do is be specific about our own product, accurate about the shape of theirs, and honest about where they are the better answer. Their current price is on their site, not on this page, and the reason is at the bottom.

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What Math Mammoth is

Math Mammoth is a math curriculum written by Maria Miller, a former math teacher. Its best-known series is a set of worktexts, the explanation and the exercises on the same page, that move through topics in depth rather than in a spiral. It comes as PDF downloads or printed books and is known for being low-prep for the parent and focused on understanding.

The pricing difference that actually decides it

Math Mammoth is sold by grade level or topic, as downloads or printed books, bought once and reusable within the family under its own terms. Check their site for current options.

Clareza is $29 a month for every child in the household, month to month, with no per-child seats and no course limits. That is $348 a year whether you have one child or four, or $290 a year on the annual plan. The first 30 days are free, a card is taken and nothing is charged until day 30, and cancelling before then costs nothing.

The comparison to run is the same either way: monthly price, times the number of children, times twelve.

Check Math Mammoth's current pricing on their own site →

When Math Mammoth is the better choice

  • You want paper worktexts your child can read and do on their own. Math Mammoth is built for that. Clareza is on screen.
  • You want to keep screen time low. Math Mammoth needs no device once it is printed.
  • You only need math. Math Mammoth is a focused math program, and Clareza is priced as a whole curriculum.

Where Clareza is different

Someone explains the wrong answer

In a worktext, a wrong answer is found when the key is checked. In Clareza, Clara reads the answer as it is given and explains what went wrong in it. She is an AI and can be wrong.

Read aloud for young children

In kindergarten, math runs on screen with the questions read aloud and answers tapped, so a child who cannot read yet can still work.

Every subject for one price

$29 a month covers math and every other subject for every child in the household.

Start 30 days free

Or read all 71 courses first and compare the actual sequences. That door needs nothing from you at all.

Look inside all 71 courses firstEvery unit, every skill, every objective. No account, no card.

or start now

What grade(s)? (optional)

Free for 30 days. We take a card now and charge nothing until then. $29 a month after that, for every child in the family. Cancel anytime in a couple of taps. Cancel before day 30 and you pay nothing at all.

Before your child starts: what we collect and why

We collect only what it takes to teach your child: the first name and sign-in you choose, their answers and progress, and their chat with Clara (written by Anthropic's AI, read aloud by OpenAI). Nobody trains AI on it or sells it, and you can see or delete it any time. You create your child's account yourself. Paying by card is how you give consent.

Read what we collect and why

Your consent is needed before we collect anything from your child, and we collect nothing without it. You create your child's account yourself; they never sign up alone.

  • What we collect from your child: the first name and sign-in you choose, their answers, time on lessons and progress, and their chat with Clara. Used to run the lessons, build their transcript and show you how they are doing.
  • Who else handles it: Anthropic (an AI company) receives the chat text and the lesson, with your child's first name but no last name or account details, to write Clara's replies. That is how Clara works, so it is part of the service. If you switch on answering out loud for a child, their voice is turned into text on our own server and then discarded; it is never sent to another company. OpenAI turns lesson text and Clara's replies (which can include your child's first name) into the read-aloud voice. Our email provider sends you reports about your child. Nobody trains AI on your child's data, and nobody sells it.
  • Your rights: see everything collected from your child, have it deleted, or stop further collection at any time, from your account or by emailingour support address. If you refuse the AI sharing above, Clara cannot teach, so the service cannot run. Chats are deleted after 30 days.
  • Safety: if your child writes something suggesting they may be hurt or in danger, we email you and Clareza's owner the same day.

Paying by card is how you give consent. Full details, including how long we keep each thing: Privacy Policy (version 2026-10-05).

By continuing you agree to the Terms and Privacy Policy.

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Questions parents ask

Is Math Mammoth or Clareza better for an independent child?

Both can work. Math Mammoth suits a child who reads well and likes paper. Clareza suits a child who does better with someone explaining each mistake, and from kindergarten the questions can be read aloud.

Can we use Math Mammoth with Clareza?

Yes. Some families keep a worktext for math and use Clareza for the other subjects, or the other way round.

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Why there is no price for Math Mammoth on this page

We checked in September 2026 and the sources contradicted each other, including the companies' own pages against the review sites. Publishing a competitor's price that turns out to be wrong is unfair to them and useless to you, and any figure here would be out of date within a month anyway. Ours is above, because it is ours and we can stand behind it. Theirs is one click away, on their site, where it is current.