BuildMath: Learn one number family. Unlock every answer in it.

See it in action

Six screens. One happy learner.

How it works

Three steps, every single unit.

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Meet one family

Today's lesson is the 5 family: every pair of numbers that makes 5. One idea, not twenty flashcards.

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Build every fact

Count real pictures with ghost slots, then build each fact by hand. The voice teaches the WHY behind every answer.

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Own it from memory

Number stories and quizzes bring every fact back until your child answers from memory, with a streak they will protect.

What's inside

Built like a curriculum. Played like a game.

ALL SEVEN levels live: 58 number families and 243 facts, from number bonds through Take Away, ladders, place value, times families, fair shares and fractions
Counting pictures your child can touch, count, and see
Every fact taught out loud with the reason, not just the answer
Number stories: "4 cats and 3 more cats. How many cats?"
Printable certificates and a Grown-Ups Corner fact tracker
Same account and progress as BuildReading and BuildWrite

Calm by design, for every kind of learner.

BuildMath was built with kids who learn differently in mind, including autistic kids and kids with dyslexia. Every instruction is spoken aloud, the structure repeats predictably, wrong answers get gentle coaching with unlimited retries, and there are no timers and no losing.

Calm Mode is coming to the Family plan: softer sounds, fewer animations, extra repetition, and a slower pace, one switch in the Grown-Ups Corner that changes all three apps at once.

🔊 Every word spoken out loud

🔁 Same predictable lesson shape every time

🚫 No timers, no buzzers, no game over

💛 Gentle coaching, unlimited retries

The Build Learning family

One account. Three apps that work together.

Your child's name and progress carry across every app. And with the Family plan's Build It All daily missions, one mission word gets read in BuildReading, counted in BuildMath, and written in BuildWrite, every day.

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BuildReadingLearn one pattern, unlock a whole family of words.

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BuildWriteRead it, then write it. Locked in.

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Build LearningThe whole family, the method, and pricing.

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Questions

Parents ask, we answer.

What age is BuildMath for?

Ages 5 to 11. It starts with counting and the small number families, and grows into doubles, make-10, and bigger fact families.

Is it free?

The first 3 lessons in each app are free, including the teaching voice, stories, Daily Review, and your child's first printable certificate. The Family plan opens every lesson in BuildReading, BuildMath and BuildWrite for $9.99 a month.

How is it different from math drill apps?

Drills test. BuildMath teaches. Your child learns each family as one pattern and sees the picture behind every fact before ever being quizzed on it.

Start BuildMath tonight. Free.

Two minutes to the first proud moment. No signup, no card. Play in the browser right now, or grab it on Google Play.

🔢 Play free now ▶ COMING SOON TOGoogle Play