LEGO® Builder: 3D Instructions

4.8
247K reviews
10M+
Downloads
Teacher Approved
Content rating
Everyone
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About this app

LEGO® Builder is the official building instructions app for LEGO® sets that guides you on an easy, fun, and collaborative digital building adventure.

Build your set like never before:

- Step into a new way of building with an intuitive 3D building experience that lets you zoom, rotate, and view LEGO® sets from every angle.

- Use step-by-step digital building instructions to see each brick clearly and bring your set to life with confidence.

Build Together with friends and family!

- Build Together is a fun, social building experience designed for multiple builders to work together.

- You can team up and divide tasks to complete your LEGO® set as a group - perfect for fun social family nights, birthdays, or holidays like Valentine’s Day, Easter, Mother’s Day, Father’s Day or Christmas.

- Share a PIN code to join as a host or builder, take turns completing building steps, and collaborate to finish the model together.

- Check in the app to see if your LEGO® set can be built using the Build Together feature.

Discover thousands of LEGO® instructions

- Explore a digital library of LEGO® building instructions from 2000 to today.

- Search by set name or number, or scan the QR code on your instruction manual to open it instantly in the app.

Follow a story as you build

- Unlock enriched content and guided building experiences for select LEGO® themes, bringing extra fun and imagination to your 3D building journey.

Unlock more with a LEGO® Account

- Save your progress, build a digital collection of your LEGO® sets, and track your total number of bricks.

- Pick up right where you left off - anytime, anywhere.

Track your building journey

- Now you can keep a record of your completed sets, see your total bricks built, and celebrate your progress as a LEGO® Builder.

Things to keep in mind

- You’ll need a stable internet connection to use this app. We’re always adding new digital building instructions so you can expand your collection, explore new sets, and find even more ways to build together.

- Want to know if your set includes digital instructions or Build Together mode? Check in the app and start your collaborative adventure today!

We're eager to hear how we can make the LEGO® Builder app even better for you! Please leave us your thoughts and recommendations in the reviews to help us make the LEGO® Builder app even better.

LEGO, the LEGO logo, the Brick and Knob configurations, and the Minifigure are trademarks of the LEGO Group. © 2025 The LEGO Group.
Updated on
Apr 13, 2026

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
This app may collect these data types
Personal info and App activity
Data is encrypted in transit
You can request that data be deleted
Committed to follow the Play Families Policy

Ratings and reviews

4.8
199K reviews
Diana Ellison
April 8, 2026
Love the app! It's a great way to keep track of most lego sets and the 3d view makes it easier for the kid to build. However I do believe it could be better. It's frustrating when a set retires instead of showing the picture its a blank box and you have to figure out which set it is. Almost none of the small bag sets (polybags) are not on here which we wish they were so we didnt have to keep up with the small papers in the bag to rebuild it later or atleast to keep track of sets and pieces.
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LEGO System A/S
April 9, 2026
It looks like there’s a technical issue with your set not showing up; even retired ones should still appear if their picture was previously displayed. Please try deleting and reinstalling the app to see if that fixes it. For polybags, give us a call at LEGO.build/Service so we can help request specific sets. - Coryne, LEGO® Customer Service
William B
April 6, 2026
New update is unusably bad. They removed the nice and easy to read list of sets in your collection, to make it a huge PITA to find your instructions in a giant pile of pictures you have to aimlessly scroll through. Lego has asked APKMirror to not host older versions of their app, so I would rate this app less than 0 stars if possible. Such anti-consumer behavior is enough to prevent me from buying their products in the future.
1 person found this review helpful
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Athenor
April 6, 2023
I just discovered this app can track my collection. I added all the sets I could remember, and that were in the app. I hit 175 sets and over 110k bricks. I.. may have a problem. I can't wait for future updates to continue adding older set support! Only negatives are that it is not easy to bulk add things, or add multiple copies of a set. But that is minor compared to it's primary use.
244 people found this review helpful
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LEGO System A/S
April 6, 2023
175 sets makes for an amazing collection! 😍 We're glad to hear you’re enjoying the LEGO® Builder app. Our team is always looking for ways to improve and update the app, so your feedback is really appreciated. 😀 - Todd, LEGO® Customer Service

What’s new

We've made the LEGO Building Instructions experience even more awesome. How? Well, we fixed some pesky bugs and improved performance in the app. Now you can build even bigger, better than before!