The whole K–12 curriculum, free for 30 days.

Every grade, every subject, every child in the family, one price. A teacher built in who explains the mistake instead of marking it wrong. Hours and transcripts log themselves.

Built by a professor with a PhD in education.

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

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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.

You can cancel the same minute you start and still keep all 30 days. And we email you 3 days before any charge.

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, the Refund policy and Privacy Policy.

Rather see it first? Try a full lesson free

How Clara teaches, from a grade 3 math lesson:

What's 304 minus 178? Take your time.

136?

So close! I can see exactly what happened: you borrowed from the hundreds to help the ones column, but that zero in the tens place should become a 9, not stay looking like a 10, because it already lent part of itself onward. Let's redo just the tens column together: 9 minus 7, not 10 minus 7.

Every lesson works like this. Wrong answers get explained, not just marked.

71 courses · about 35,500 practice questions · kindergarten through twelfth grade · one family price. Every child in the household is included — there are no extra seats to buy.