LEGO® DUPLO® Trains

3.2
1.33K reviews
Content rating
Everyone
100K+
Downloads
Content rating
Everyone
Learn more
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About this app

Choo-choo! Hop aboard the LEGO® DUPLO® Trains app with your little conductor and discover new ways to play! Allow your child the thrill of remote controlling the train, operating lights, recording their voice and customizing sounds with presets when used with the special purple Action Brick in the playsets.
Get inspired with trainloads of rebuilding ideas, video guidance and extended-functionality features for LEGO DUPLO Interactive Trains playsets. This optional companion app can support your child’s development of essential skills such as creative problem-solving and learning patience.
When kids play, they learn and grow. Our activities are designed to fit your child’s development stage and help them develop a balance of the IQ (cognitive, creative and physical) and EQ (social and emotional) skills they need for the best start in life. LEGO DUPLO Interactive Trains and the app not only support creative solutions and learning patience, but they also help toddlers learn to predict, improve hand-eye coordination and develop spatial awareness. Additionally, they promote emotional control, focus and fine and gross motor skills.
Always free to play! However, to enhance the experience, use the app with one or more of the following playsets available for purchase:

- LEGO® DUPLO® Train Tunnel and Tracks Expansion Set (10425)
- LEGO® DUPLO® Train Bridge and Tracks Expansion Set (10426)
- LEGO® DUPLO® Interactive Adventure Train (10427)
- LEGO® DUPLO® Big Interactive Community Train (10428)
or
- LEGO® DUPLO® Cargo Train (10875)
- LEGO® DUPLO® Steam Train (10874)

FEATURES
• Safe and age-appropriate (age 2+)
• Designed responsibly to let your child enjoy screen time while developing healthy digital habits at a young age
• Supports development of essential IQ and EQ skills through age-appropriate playful learning activities
• Build connections and ignite creativity through video-led activities
• Unlock unlimited play possibilities with rebuild inspiration and additional instructions
• Extend the fun and create an immersive experience, when using this app together with the special purple Action Brick (included in select LEGO® DUPLO® Interactive Train playsets)
- Via Bluetooth®, pair this optional companion app with any LEGO® DUPLO® Interactive Train
- Toddlers can record their own sounds, control lights, and remotely operate the train
• Play pre-downloaded content offline without WiFi or internet

LEGO, the LEGO logo, DUPLO and the DUPLO logo are trademarks and/or copyrights of the LEGO® Group. ©2024 The LEGO Group. All Rights Reserved.
Updated on
Oct 2, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Committed to follow the Play Families Policy

Ratings and reviews

3.1
1.19K reviews
Einar Wulfsberg
November 15, 2025
So we will get rid of the fun app (previous version). We will replace it with something that is boring and trying to sell more stuff instead of being something good for Duplo aged children to play with. Terrible support and decision Lego. I have no idea who they designed this for, but it wasn't the children actually using the Duplo trains. Major fail.
37 people found this review helpful
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Jun Med
January 5, 2026
first thoughts is bad.. lets see later on voice option for.purple tile is not working(takes a while to upload and doesnt do it, just goes to the last sound used) and app stops working after. [have to turn off and on and close and open app for it to start working again] train control works only if I go directly to it. if i go first to change sounds it wont work and if i go to change sounds after and go back it doesnt work either help if possible!
11 people found this review helpful
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LEGO System A/S
January 6, 2026
Oh no! Let's fix this! Please check that no other apps are running in the background. You can also review compatible devices at LEGO.build/DeviceCheck-GPlay. If the issue persists after reinstalling the app, our brick experts at LEGO.build/Service-GPlay will be happy to assist you further. - Coryne, LEGO® Customer Service
something like that
September 15, 2025
Lego made a great app bad for no reason It WAS a great app, had an excellent well animated interface which my kids loved. Then they changed it to a plain button only design for no benefit. Their also removed the ability to play it without the trains The app was awesome way to make the trains even more fun and now it feels like it's main purpose it to advertise more duplo The trains from last year are under a new "expiried" section. This from a company whose products use to last generations
8 people found this review helpful
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What’s new

Minor bug fixes