Join the Sesame Street Mecha Builders—Mecha Elmo, Mecha Cookie Monster, and Mecha Abby Cadabby—as they dive into fun, STEM-powered adventures made just for preschoolers! Using the power of science, technology, engineering, and math (STEM), kids embark on playful missions while building critical thinking, problem-solving, and creativity!
Based on the CGI-animated Mecha Builders series, this app reimagines Sesame Street favorites as robo-heroes-in-training who use their STEM skills to solve larger-than-life problems. Packed with hands-on challenges, fun physics games, coding basics, and creative activities like music and coloring, the app is designed to spark imagination and a lifelong love of learning.
Designed for Preschoolers (Ages 2–6)
With its age-appropriate interface, simple controls, and engaging animations, the app is easy for young children to navigate independently or with a caregiver.
Boost Early STEM Skills
Children solve interactive puzzles, play with physics-based activities, and learn early coding principles—all tailored to boost their confidence and critical thinking.
Learn Through Creativity
Beyond logic and numbers, the app encourages artistic exploration. Kids can mix colors to make crayons, color characters, create music, and engage in sound-based games that foster self-expression.
Safe, Non-Competitive Play
Kids explore at their own pace in a non-competitive environment where mistakes are part of the learning process—just like how the Mecha Builders solve problems one step at a time.
Join Heroic STEM Missions
In story-driven missions, children help Mecha Elmo, Cookie Monster, and Abby Cadabby overcome obstacles using science and engineering know-how. From building ramps to learning how gears work, every mission is a playful learning moment.
Award-Winning Content
The app was named Best Pre-School Licensing Project at the 2025 Bologna Children’s Book Fair and nominated for a Kidscreen Award in 2025—so you know it’s content you can trust.
Built for Peace of Mind
Created in compliance with COPPA and other child privacy regulations, StoryToys and Sesame Workshop ensure a safe, ad-free experience for young learners.
All-in-One Learning Hub
With a subscription, families unlock full access to all content and future updates—making it a great investment in your child’s growth and development.
FAQs
1. What age group is the Sesame Street Mecha Builders app best for?
The app is designed specifically for preschoolers, ages 2 to 6, to support early learning in STEM through fun and interactive play.
2. Is the app safe for my child to use?
Yes! The app complies with child privacy laws like COPPA, ensuring a safe, ad-free environment for kids.
3. What kind of learning does the app provide?
Children engage in science, technology, engineering, and math (STEM) through activities like coding, counting, problem-solving, music, and creative games.
4. Is the app free or paid?
The app is free to download and play, but it includes a subscription option that unlocks all content and upcoming updates.
5. Who created the Mecha Builders app?
The app was developed by award-winning StoryToys in collaboration with Sesame Workshop, the nonprofit behind Sesame Street.
Version History
v2.3.0—11 Jul, 2024
Join the Mechas in a brand-new activity where kids can learn about shapes through fun and interactive games. This exciting addition helps children recognize and understand different shapes while playing alongside their favorite Mecha characters. Update now and start the shape-learning adventure!
v2.2.0—20 Jun, 2024
Our MECHA CODING activity just got new amazing levels. Can you figure out how do get around asteroids, noisy xylophones and other fun booby traps?
v2.1.0—31 May, 2024
Explore the enchanting Treetop Woods with the Mecha Builders INTO THE WOODS playlack. Guide them around the forest, meet unique creatures, and tackle interesting STEM challenges. Enjoy activities like making music with Singing Stones, sorting pinecones, navigating mazes, and more. Dive into a world of adventure and learning fun for pre-schoolers.
