Mental math,
game style

Short rounds of mental math that get louder and brighter the longer the streak. Addition to fractions, grades 1–6, with Bopoom the little popcorn cheering along.

Download on the App Store ▶ Try grade 1 in your browser

Scan with an iPhone camera

Bopoom is on iPhone only for now. Send this page to an iPhone in the family:

What’s inside

Made for families

No ads, no accountNothing to sign up for, no ads, no tracking.

Matched to schoolSkills sorted into grades the way 12 countries and regions teach them.

Loud, or completely calmSound, music and effects each turn down, all the way to quiet.

Mistakes that teachA wrong answer shows the working, and comes back later for another go.

Try it freeThe first rounds are free. After that, the full version unlocks every grade and skill: by the month, or with one purchase that never expires. The App Store shows the price in your currency.

Questions

Which devices?

iPhone with iOS 16 or later.

Is there an Android version?

Not yet. Bopoom is on iPhone only for now.

What age is it for?

About 6 to 12: from number bonds in first grade to fractions and equations in sixth.

Where is the progress saved?

On your child’s device, and in your own iCloud when it is on. Nothing is sent to us.

A few minutes a day, one streak at a time.