GroGroJello

Secret Invitation toJello Math World

GroGroJello

Play with math. Grow your Jello.

We dream of millions of childrenloving math.

Our aim: fun math for

100 million learners

Opening doors with

About $1/month

Helping kids discover

“I can do math!”

Jello World

A tiny worldwhere math feels alive.

Enter a cheerful world where basic math starts with wonder, not pressure.

Growth Loop

Solve problems.Grow Jello.Unlock the world.

Every little math win helps you care for Jello, watch them grow and discover new adventures.

Solve7 + 5 = ?12 - 4 = ?3 × 6 = ?20 ÷ 5 = ?Complete tiny math missions
Feed+12 Fullness+8 Happiness+5 HealthSolve problems to care for Jello
GrowMath FunNumber SenseBuild number sense through play
EvolveNew WorldDiscover the next adventure
JelloGrowing

Explore math

Endless wonder.Unlimited learning.

Dive into the Jello world - where curiosity sparks adventures and math becomes play.

Object Counting

Water World

Finger Counting

Water World

Write Numbers 0 to 20

Water World

1-Digit Addition

Water World

Bundling Tens

Water World

Length Comparison

Water World

Add Without Regrouping 1

Forest World

Subtract from 100

Forest World

Make Amounts with Coins

Forest World

Multiply by 0 and 1

Multiply by 0 and 1

Desert World

Times table practice

Times table practice

Desert World

Read Fractions

Read Fractions

Desert World

Math Roots

Small steps buildreal mathconfidence.

Each small mission strengthens the roots of elementary math.

Math Confidence
The joy of solving problems

Math games

Numbers, Counting, Place Value, Fractions, Money, Math Facts, Addition, Subtraction, Multiplication, Division, Patterns, Shapes, Measurement, Time, Graphs

Arithmetic drills

Math Facts, Addition, Subtraction, Multiplication, Division

Math tricks

Double Double!, Double Double! Carry!, 9s in a Flash!, Minus? Plus!, Five Plus One!
A fun challenge every day

Real Joy

Real play.Real smiles.Real confidence.

Watch GroGroJello in action and hear why families love it.

A video tour of Jello World
min***
“My daughter asks for one more problem so she can feed Jello before bed.”
Learning with joy
jel***
“My child wants to grow Jello, so they solve more problems on their own.”
Daily practice at home
sun***
“The short missions make it easy to keep going, even on busy school days.”
After-school routine
ger***
“Seeing Jello grow made my child proud of every correct answer.”
Building a math habit
lia***
“Small wins changed how we feel about math. It feels less daunting now.”
Confidence building
ari***
“My child remembers the math because it connects to caring for Jello.”
Playful learning

Global Access

One dollar can opena world of basic math.

GroGroJello is built to make joyful, high-quality basic math learning accessible to children everywhere.

Prices in USD. Billed for the full period.

Before you begin

Questions & answers

Everything you need to know before you begin.

What's the vision behind GroGroJello?

We dream of a world where every child can enjoy learning math, no matter where they live or what their family can afford. Through play and the joy of raising a Jello, we're making math more approachable and working toward a future where AI-powered math learning is accessible to everyone.

Who is GroGroJello for?

It's a playful way for kids to get interested in math and practice basic arithmetic. Start with small challenges that match what your child is learning now. Parents can join in, and adults rediscovering math can have fun, too.

What's a math adventure with Jello like?

Take on math missions and use your rewards to raise a Jello of your own. Feed them tasty treats, clean up their poop, and give them baths as you care for them each day. Math practice becomes part of the fun as you watch your Jello grow and set off on your next adventure.

What math topics can my child practice?

Counting, arithmetic, and fractions are just some of the elementary math topics kids can practice. Games also bring everyday concepts like shapes, measurement, time, money, and graphs to life.

Does GroGroJello support what my child learns at school?

Our activities are designed with selected topics from math standards around the world in mind, including the U.S. Common Core State Standards for Mathematics. At home or in the classroom, kids can enjoy practicing what they've learned and building a strong math foundation.

Can we get started for free?

Yes! You can raise your own Jello and enjoy a variety of math activities for free. Start your adventure with Level 1 activities, arithmetic practice, and fun math tricks.

Is a Premium Pass really about $1 a month?

Yes! Our 3-month pass costs US$2.99 in total—that's about US$1 a month. You get unlimited access to all content and features, from math adventures to caring for your Jello.

• Jello Pass: US$1.49 for 1 month / US$2.99 for 3 months • Angel Pass: US$9.99 for 12 months

We're keeping the cost low so more kids around the world have the chance to learn.

Final prices and payment options are shown at checkout and may vary by country and purchase platform.

What devices can we use?

You can play in a web browser on a phone, tablet, or computer. On supported devices, you can also add GroGroJello to your home screen or use the Android app.

Learning shouldn't depend on having the latest device or a fast internet connection. We're building an ultra-lightweight learning experience to help more people around the world learn, whatever their circumstances. An internet connection is required.

Can my child play on their own?

Simple tap-and-drag controls let kids take on missions and care for their Jello. Explore together at first, then let your child play on their own as they get comfortable. When a new concept or tricky problem comes up, work through it together.