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Do you want a science app?
The Cat in the Hat gives you that with a tap!
Kids play and learn in their backyard,
to see how science is fun, not hard!

Based on the PBS KIDS series, “The Cat in the Hat Knows a Lot About That,” this app introduces pre-k kids to science inquiry and engineering (STEM) concepts through games tailored to their learning progress.

Kids can build bridges, explore friction through slides, sort fun objects and more in fantastical lands along with the Cat in the Hat, Nick and Sally. Not only is it fun, it gives pre-k kids a head-start on education!

As kids play educational games, they earn rewards to decorate their treehouse and backyard. The learning games unlock even more games that let them tinker and explore in their own way.

Includes simple and fun hands-on educational activities that parents and kids can do together, extending the STEM fun to home and everyday materials.


- 5 entertaining games focusing on key science concepts
- Learn measurements and how sturdy materials are in Bridge-a-rama
- Develop organizational and identification skills with Sorta-ma-gogo
- Learn about physics, momentum, and surface tension in Slidea-ma-zoo with Thing 1 & Thing 2
- Discover sounds and pitch by creating musical instruments in Sounda-pa-looza
- Build your very own color mixing invention to help paint a masterpiece in Builda-ma-loo

- Parental notes and suggestions to help foster the learning experience
- Thought experiments for the growing mind
- Hands-on activities for each game
- Drawing prompts to inspire creativity, planning and reflection

- Customize a treehouse and backyard that grows the more you play
- 4 “Cat in in the Hat”-inspired tools to help make science discoveries
- Grow a garden by being curious and perseverance through game play

- English and Spanish language options available
- Closed captioning support included

Make learning fun with STEM games from the Cat in the Hat and all his friends! Download now!

About the Cat in the Hat Knows A Lot About That!
Voiced by award-winning actor Martin Short, Dr. Seuss's The Cat in the Hat guides friends Sally and Nick - with a little help from the Fish, Thing 1 and Thing 2 - on fun-filled adventures where they explore science and engineering concepts.

Filled with both adventure and silliness, THE CAT IN THE HAT KNOWS A LOT ABOUT THAT!, based on the acclaimed The Cat in the Hat's Learning Library book series, appeals to preschoolers' natural curiosity, engaging them in the process of scientific exploration and discovery.
For more fun with The Cat in the Hat Knows A Lot About That, visit pbskids.org/catinthehat.

The Cat in the Hat Builds That app is part of PBS KIDS’ ongoing commitment to helping kids build the skills they need to succeed in school and in life. PBS KIDS, the number one educational media brand for kids, offers all children the opportunity to explore new ideas and new worlds through television and digital media, as well as community-based programs.

For more PBS KIDS apps, visit http://www.pbskids.org/apps.

The Cat in the Hat Builds That app was created as part of the Corporation for Public Broadcasting (CPB) and PBS Ready To Learn Initiative with funding from the U.S. Department of Education. The contents of the app were developed under a cooperative agreement #U295A150003, from the U.S. Department of Education. However, these contents do not necessarily represent the policy of the Department of Education, and you should not assume endorsement by the Federal Government.

Across all media platforms, PBS KIDS is committed to creating a safe and secure environment for children and families and being transparent about what information is collected from users. To learn more about PBS KIDS’ privacy policy, visit pbskids.org/privacy.

iOS Store Category:

Primary: Education

Secondary: Adventure

App Store

Privacy Policy

Total Ratings



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Version History

Launched Mar 08, 2018 (about 2 years ago).

Releasing new versions every 3 months, on average.

Feb 26
Version 2.4

So long winter snow, said Thing 2 and Thing 1
Let's welcome our spring update, green trees and sun!

Dec 09
Version 2.3.0

Join the winter fun and play with Thing 1 and Thing 2
Make a snowman with The Cat, Nick and Sally too!

Sep 10
Version 2.2.0

Come join the fall fun with Thing 1 and Thing 2
With a backyard full of pumpkins and leaves that are new!

Apr 18
Version 2.1

An update for you
from Thing 1 and Thing 2.
It fixes some crashes you might have seen yesterday,
but now The Cat in the Hat is ready for you to play!

Mar 30
Version 2.0

Two new games and a new garden to grow
Thing 1 and Thing 2 want you all to know
We have also updated games with more levels and engineering contraptions
So go update & play, and check out the all new closed captions

Sep 21
Version 1.2.1

Loading issue fixed by Thing 2 and Thing 1
Now get back to engineering and having some fun!

Jul 19
Version 1.2.0

You will see a BIG change if you update this app
It is now available en español, just check your settings with a tap!

Jun 01
Version 1.1.1

We used our engineering skills with Thing 2 and Thing 1
To improve Bridge-a-rama so you can continue your fun!

May 17
Version 1.1.0

We called in for some help from Thing 2 and Thing 1
To make a few small fixes so you can continue your fun!

Mar 08
Version 1.0

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