Your personal tutor for math and coding

A world-class tutor for every home. Built by top learning experts from MIT and Harvard.

Fully accredited

by ACS WASC

100,000+

5-star app store reviews

10 million+

learners around the world

Meet Koji,
your
personal
tutor

MathCoding

A visual, interactive tutor, not a cheating machine

Unlike other AI chatbots and homework help tools, Koji never just gives you the answer. He ensures you actually understand math.

You learn with Koji on a shared interactive canvas. He asks guiding questions, sketches on your screen, gives hints, and provides visual help.

Like the best human tutors, he gets to the heart of where you’re getting stuck, and works with you until you can solve hard problems yourself.

Adapts to exactly where you are

Koji tracks what you’ve mastered and what you’ve missed, then builds your learning plan around the gaps.

He gets you caught up on any shaky fundamentals, and personalizes your practice and review sessions to optimize your learning.

He accelerates your learning plan when you’re ready, and slows down when you need it.

Real-time progress tracking & analysis

Visual dashboards make it easy to see what clicked, what’s still difficult, and what to do next.

Parents and learners also receive regular notifications, with an overview of completed lessons, performance on mastery assessments, learning strengths, and areas that need more practice.

Effective and trusted

Koji offering to try another approach in a lesson chat, above a prompt reading “How can I help?”

Lesson interventions

Koji provides instant, one-on-one help whenever you’re stuck, just like an expert sitting right next to you.

Get guidance, alternative explanations, or hints, using voice or chat.

A lesson plan headed “Let’s build up a few skills first”, listing distance skills marked as made for the learner

Mastery assessments

Koji makes sure you understand every concept with regular assessments. If you come up short, he creates targeted practice to get you back on track.

kidSAFE CERTIFIED

Brilliant is independently certified to meet strict U.S. standards for kids’ online privacy and safety.

Brilliant is a member in the kidSAFE Seal Program. To learn more, click on the seal or go to www.kidsafe.com.

From grade 5 to college and beyond

Covered subjects

  • Fractions
  • Proportional Reasoning
  • Coordinate Transformations
  • Quadratics
  • Functions
  • Trigonometric Functions
  • Derivatives
A child using a tablet at a kitchen counter while an adult prepares food in the background
A child using a tablet at a kitchen counter while an adult prepares food in the background

Always on your
schedule

Say goodbye to the chore of finding a tutor, driving to sessions, 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.

Get a year of tutoring for the price of a few in-person sessions.

Aerial view of a university campus with historic brick buildings
Aerial view of a university campus with historic brick buildings

Built by top learning
experts

Our curriculum is crafted by award-winning teachers, subject-matter experts, and learning designers from top institutions.

MITHarvard UniversityStanford UniversityCornell UniversityCaltech
Students working through Brilliant lessons on laptops in a classroom

Trusted by thousands of schools

Every student gets an interactive, personalized learning program – one that sees what they’re doing, gives custom feedback, and assesses for mastery. It fits into your classroom, or as homework.

Free for individual classrooms. District pricing available on request.

See how schools use Brilliant →

Students, parents, and
teachers love us

She’ll get stuck on a problem and then yell, ‘Never mind, Mom, I got it!’ How great is that?

Arianne

Arianne

Parent of
10 year old

I didn’t get the slope unit in class, but it finally clicked after talking to Koji for a few minutes!

Eliza

Eliza

7th grader

It’s been a win-win. My son’s grades are up and he doesn’t complain about studying with Brilliant.

Hana

Hana

Parent of
16 year old

I learned most of trigonometry in 12 days, I just got into a flow. I’m one of the best in my class now.

Tyler

Tyler

10th grader

They enthusiastically use it outside of class. I had 8th graders say, ‘This makes me want to do more math!’

Aaron

Aaron

Algebra Teacher

She’ll get stuck on a problem and then yell, ‘Never mind, Mom, I got it!’ How great is that?

Arianne

Arianne

Parent of
10 year old

I didn’t get the slope unit in class, but it finally clicked after talking to Koji for a few minutes!

Eliza

Eliza

7th grader

It’s been a win-win. My son’s grades are up and he doesn’t complain about studying with Brilliant.

Hana

Hana

Parent of
16 year old

I learned most of trigonometry in 12 days, I just got into a flow. I’m one of the best in my class now.

Tyler

Tyler

10th grader

They enthusiastically use it outside of class. I had 8th graders say, ‘This makes me want to do more math!’

Aaron

Aaron

Algebra Teacher

She’ll get stuck on a problem and then yell, ‘Never mind, Mom, I got it!’ How great is that?

Arianne

Arianne

Parent of
10 year old

I didn’t get the slope unit in class, but it finally clicked after talking to Koji for a few minutes!

Eliza

Eliza

7th grader

It’s been a win-win. My son’s grades are up and he doesn’t complain about studying with Brilliant.

Hana

Hana

Parent of
16 year old

I learned most of trigonometry in 12 days, I just got into a flow. I’m one of the best in my class now.

Tyler

Tyler

10th grader

They enthusiastically use it outside of class. I had 8th graders say, ‘This makes me want to do more math!’

Aaron

Aaron

Algebra Teacher

Showing testimonial 1 of 5

The best tutor you’ll ever have
is already here

Get it on Google PlayDownload on the App Store

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