Questions, answered.

Raitu is an AI tutor that teaches lessons on a live whiteboard with voice narration, images, equations, and graphs. You pick a topic, Raitu plans the lesson, then teaches it out loud while illustrating each idea — pausing to check your understanding and answering your questions mid-lesson.

Almost anything a great tutor could explain on a whiteboard — maths, physics, chemistry, biology, programming, history and more. If the ideas can be shown with figures and equations, Raitu can teach them.

Yes. Raitu is free while it's in beta — no credit card, no trial clock, no usage limits. When paid plans arrive, they'll be simple and fair, and beta users get a good deal for joining early.

Yes — but it takes seconds. Sign in with Google or your email to start learning. There's no card and no trial clock.

Sign in with Google or your email and password. Whichever you pick, you're learning within seconds — no card, no trial clock.

Signing in keeps your lessons, progress, and settings together in one place — so your history follows you across devices, and nothing is lost when you clear your browser.

No. You can type every question and every answer. A mic just unlocks speaking your questions out loud.

In your account, synced across your devices. Sign in from any browser — your lessons and progress are exactly where you left them.

Yes — it's the core of Raitu. Ask a question while your tutor is talking: the lesson pauses, you get an answer, and it resumes exactly where it left off.

Ask about it. Raitu will correct itself or re-explain differently, and you can replay any section or start a fresh lesson on the same topic.

Yes. The whole experience — whiteboard, voice, interruptions and checks — is fully responsive and runs in the browser on any modern phone or tablet.

Yes. Lessons respect reduced-motion preferences, all controls are keyboard-accessible, and interface elements carry screen-reader labels.