Secret Invitation toJello Math World
GroGroJello
Play with math. Grow your Jello.
Secret Invitation toJello Math World
Play with math. Grow your Jello.
Our aim: fun math for
100 million learnersOpening doors with
About $1/monthHelping kids discover
“I can do math!”Jello World
Enter a cheerful world where basic math starts with wonder, not pressure.
Growth Loop
Every little math win helps you care for Jello, watch them grow and discover new adventures.
Explore math
Dive into the Jello world - where curiosity sparks adventures and math becomes play.
Water World
Water World
Water World
Water World
Water World
Water World
Forest World
Forest World
Forest World

Desert World

Desert World

Desert World
Download, print, and enjoy our free math worksheets. No sign-up required.
Math Roots
Each small mission strengthens the roots of elementary math.
Designed with these math standards in mind.
Real Joy
Watch GroGroJello in action and hear why families love it.

“My daughter asks for one more problem so she can feed Jello before bed.”
“My child wants to grow Jello, so they solve more problems on their own.”
“The short missions make it easy to keep going, even on busy school days.”
“Seeing Jello grow made my child proud of every correct answer.”
“Small wins changed how we feel about math. It feels less daunting now.”
“My child remembers the math because it connects to caring for Jello.”
Global Access
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
Everything you need to know before you begin.
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.
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.
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.
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.
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.
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.
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.
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.
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.