Move
the math.

Hands-on math tools for kids 4–9, made for parents, homeschool families, and teachers. Real manipulatives, zero clutter — no ads, no accounts, no rewards circus.

Rumi, the Manipulatives mascot
Live demo — play it now

A toolbox that grows with them

counting at four, fractions of an hour at nine

…and the whole collection

The full library of manipulatives, plus saved lesson setups, in the iPhone and iPad app.

See what's inside
Here, in the browser

Free, forever

  • Five complete tools
  • The same engine as the app
  • No account, nothing to install
You're already using it
In the app

Everything, one tap away

  • The full tool library
  • Saved lesson setups
  • Native touch on iPhone and iPad
Download on theApp Store

Five free,
forever.

All five run in the demo above — and they stay free in the app too.

Manipulatives app icon

The whole toolbox.
One download.

Every manipulative plus saved lesson setups, on iPhone and iPad. The five tools above stay free everywhere.

Download on theApp Store