The math
curriculum that
teaches itself
Brilliant gives your child a personal tutor and a complete, accredited math curriculum – from arithmetic through calculus. You don’t need to be a math teacher. Koji is.
Award-winning
learning that’s effective
and fun
100,000+
5-star app store reviews
10 million+
learners around the world
A complete learning system
with tutoring built in
Every concept is taught through interactive, visual lessons – and when your child gets stuck, Koji is right there, coaching them through it. No answer-giving. No dead ends. Just patient, expert tutoring on demand.
Complete curriculum, fully accredited
Brilliant covers math from number line basics through calculus – aligned to Common Core and accredited by WASC.
Your child learns independently
Brilliant is designed so your child can sit down and learn on their own. The lessons teach concepts through interactive problems – no lectures to sit through, no videos to zone out on. And when they get stuck, they have Koji.
You see exactly where they are
[Coming in Fall 2026] Track your child’s progress through every concept. See what they’ve mastered, where they’re spending time, and where they might need extra support.
From grade 5 to college and beyond
Covered subjects
- Arithmetic Thinking
- Proportional Reasoning
- Probability and Chance
- Visual Algebra
- Solving Equations
- Quadratics
- Calculus
Always on your
schedule
Say goodbye to trial-and-error hiring, driving across town, and fitting another thing into your schedule. Koji is there Sunday night before the test, Saturday morning for fun, and the quiet 20 minutes before dinner.
Built by top learning
experts
Our curriculum is crafted by award-winning teachers, subject-matter experts, and learning designers from top institutions.
Parents and students love us
She read the problem out loud and figured it out on her own — ‘Oh! I know! Never mind, Mom, I got it!’ I’m seeing those breakthroughs more often.
Arianne
Parent of 10-year-old
He has developed an interest in quite complex mathematical concepts beyond what’s typical for his age, progressing gradually with Brilliant’s scaffolded approach.
Mark
Parent of 13-year-old
Statistics: he learned it entirely from Brilliant! He can tell me the probability of things like pulling a particular card from a deck. He’s excited enough that he wants to be a statistician when he grows up.
Nate
Parent of 16-year-old
I asked Koji to explain how to solve a quadratics problem and what I did wrong. He clarified the steps and encouraged me to trust myself, which made it click. He gives 1:1 attention to my questions like a tutor does.
Saeju
Homeschool student
He has more resilience working through difficult problems and clearer problem-solving. He used to worry if he didn’t know an answer and shut down; now he’s happier to work through it.
Teresa
Parent of 9-year-old
He now understands concepts after seeing them approached differently on Brilliant. Triangles and angle relationships clicked, and equations are another area where the different perspective helped him say, ‘Yes, I get it!’
Jose
Parent of 14-year-old
The app is great, my 11 yo got algebra straight away, juggled it all in his head. Handled simultaneous equations and substitutions without any hesitation. It’s so well explained.
Seiniau
Parent of 11-year-old
She read the problem out loud and figured it out on her own — ‘Oh! I know! Never mind, Mom, I got it!’ I’m seeing those breakthroughs more often.
Arianne
Parent of 10-year-old
He has developed an interest in quite complex mathematical concepts beyond what’s typical for his age, progressing gradually with Brilliant’s scaffolded approach.
Mark
Parent of 13-year-old
Statistics: he learned it entirely from Brilliant! He can tell me the probability of things like pulling a particular card from a deck. He’s excited enough that he wants to be a statistician when he grows up.
Nate
Parent of 16-year-old
I asked Koji to explain how to solve a quadratics problem and what I did wrong. He clarified the steps and encouraged me to trust myself, which made it click. He gives 1:1 attention to my questions like a tutor does.
Saeju
Homeschool student
He has more resilience working through difficult problems and clearer problem-solving. He used to worry if he didn’t know an answer and shut down; now he’s happier to work through it.
Teresa
Parent of 9-year-old
He now understands concepts after seeing them approached differently on Brilliant. Triangles and angle relationships clicked, and equations are another area where the different perspective helped him say, ‘Yes, I get it!’
Jose
Parent of 14-year-old
The app is great, my 11 yo got algebra straight away, juggled it all in his head. Handled simultaneous equations and substitutions without any hesitation. It’s so well explained.
Seiniau
Parent of 11-year-old
She read the problem out loud and figured it out on her own — ‘Oh! I know! Never mind, Mom, I got it!’ I’m seeing those breakthroughs more often.
Arianne
Parent of 10-year-old
He has developed an interest in quite complex mathematical concepts beyond what’s typical for his age, progressing gradually with Brilliant’s scaffolded approach.
Mark
Parent of 13-year-old
Statistics: he learned it entirely from Brilliant! He can tell me the probability of things like pulling a particular card from a deck. He’s excited enough that he wants to be a statistician when he grows up.
Nate
Parent of 16-year-old
I asked Koji to explain how to solve a quadratics problem and what I did wrong. He clarified the steps and encouraged me to trust myself, which made it click. He gives 1:1 attention to my questions like a tutor does.
Saeju
Homeschool student
He has more resilience working through difficult problems and clearer problem-solving. He used to worry if he didn’t know an answer and shut down; now he’s happier to work through it.
Teresa
Parent of 9-year-old
He now understands concepts after seeing them approached differently on Brilliant. Triangles and angle relationships clicked, and equations are another area where the different perspective helped him say, ‘Yes, I get it!’
Jose
Parent of 14-year-old
The app is great, my 11 yo got algebra straight away, juggled it all in his head. Handled simultaneous equations and substitutions without any hesitation. It’s so well explained.
Seiniau
Parent of 11-year-old
