01
Corrects mistakes in real time
Blu sees where the thinking broke down and turns the miss into the next teaching moment.
38+18=
416
Master a full grade of math in 20 hours*
Every day, Blu gives them the next step up. Built for ambitious kids in grades 3-8.
*Based on early results from our Alpha School pilot.
9:41
Lines of Symmetry
How to identify a line of symmetry.
Determine if
a dashed line is a line of symmetry for this shape.
1
Fold the shape along the dashed line
A real line of symmetry divides a shape into two identical halves. The grayed dashed outline shows the original shape.
Fold
2
Check if the halves match
The halves overlap perfectly. This is a real line of symmetry.
Worked Example
Identify a line of symmetry.
Is the dashed line a line of
symmetry for this shape?
Yes
No
I don't know
Check
Trusted by serious minds in learning
How it works
Built to outperform tutoring.
Tutors see a session. Blu studies every answer and keeps improving the path.
02
Teaches with visual models
Inspired by Singapore-style math, Blu builds the idea visually before moving to symbols.
03
Uses spaced repetition
Old skills come back before they fade, mixed with new work so learning lasts.
Fractions
DONE2Place value
REVIEW3Symmetry
NEWTESTIMONIALS
Real families.
Real progress.
Parents see the scores. Kids feel the world grow as they get better at real math.
"The first math practice my child doesn't avoid."
Daniel
Parent, Founding Family Program
9:41
Find the area of the rectangle.
Each small square is
1
square unit.
4
×
5
=
20
Correct!
+15 XP
Why?
Continue
Beyond the lesson
A practice your child
returns to.
Your child collects companions by getting better at real math. Their world grows as their skills grow.
Companions grow
Pets level up when real math skills improve.
New areas unlock
The world opens as your child masters the next skill.
Daily quests guide practice
Blu gives them a clear reason to return tomorrow.
FOUNDERS' LETTER
Children should not lose years to the wrong kind of practice.
Catch the misconception immediately
A missed problem should become a clear next step, not another reason for a child to decide they are bad at math.
Teach visually before symbols
Children transfer ideas better when they see the structure first. That is why Blu leans on diagrams, models, and worked examples.
Bring skills back before they fade
Spaced repetition and interleaving are not extras. They are what make practice turn into long-term mastery.
Founders' Letter
When a young child misses the same kind of math problem again and again, they are not just losing points. They are learning a story about themselves: "maybe I am bad at this."
That is the disservice we wanted to stop. A mistake should tell the system what to teach next. It should not become a nightly fight, a confidence problem, or a year of wasted practice.
Tutoring can help, but tutoring is expensive, inconsistent, and often becomes supervised homework. The best tutors break a concept down beautifully. Then they still need a practice system that remembers what to review, when to review it, and how it connects to everything else.
Blu is built to do both: catch the misconception in the moment, then map the path forward with spaced repetition, interleaving, and visual explanations designed for transfer.
The goal is not just a better score. It is a child who can think with math and keep climbing.
pricing
Simple pricing
for
serious progress
Blu Annual
Save 20%
$200/mo
The plan meant for families who want continuity, deeper visibility, and a serious parent community around their child's progress.
Everything in Monthly
Private parent community
Parent strategy call
Expanded parent reports
Founding family events
Early access to new Blu features
2 grades in 5 months, or your money back