About us

Hi! We’re Kizupi.

Kizupi is a free math tutor app that coaches children to reason through word problems, pictures and early algebra, for kids in Grades 1–6 and the grown-ups who help them learn.

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Our story

Kizupi started with a simple belief: a tutor should notice how a child thinks, not just whether the answer is right. The name comes from kizuki, Japanese for noticing something new, which is the moment an idea clicks.

We’re a small, independent team that loves a good puzzle. People write every line Kizupi says, and a person reads every message sent to us.

Meet the crew

Every world has a buddy who cheers your child on.

Psst! Poke one of us to say hi.

  • KizupiHead tutor
  • FoxForest
  • CatCity
  • WhaleOcean
  • Moon bunnySpace
  • PigFarm
  • PenguinSnowy peaks
  • FrogJungle
  • BearBlueprint

What makes Kizupi different

Plenty of apps can quiz a child. Kizupi is built to teach them to think.

  1. It asks why, not just “what’s the answer?”

    Drill apps like IXL and Prodigy are built around answering lots of questions. Kizupi slows down on purpose: it asks “how do you know?” and listens, because reasoning is what carries into the next grade.

  2. It never hands over the answer

    Photomath and AI chatbots can give a finished solution. Kizupi climbs a 7-step hint ladder instead, and a math engine, not a chatbot, checks every answer.

  3. It’s free, with nothing to buy

    IXL and Prodigy charge for full access. Kizupi is $0 for every family, with every grade, lesson and world included and no ads.

  4. It’s private by design

    Children never make an account: a parent adds a nickname, a grade and a pixel animal. No birthday, photo, surname, school or location, and families can delete everything at any time.

Come say hello.

Questions? The help center and FAQ have answers, and a person reads every message.