LEGO® Builder: 3D Instructions
LEGO® Builder: 3D Instructions Summary
LEGO® Builder: 3D Instructions is a free Android app in Entertainment by LEGO System A/S. Released in Dec 2019 (6 years ago). It has about 40.6M+ installs and 265K ratings with a 4.79★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 1M monthly active users . Store last updated Jul 7, 2026
Recent activity: 147K installs this week (670K over 4 weeks) showing strong growth , and 1.4K new ratings this week View trends →
Advertising: AppGoblin has tracked 1.00 ad creatives this app uses for paid user acquisition across ad networks.
SDK intelligence: AppGoblin detected 13 development tools(e.g. Unity), 1 analytics: attribution, 1 ad networks, 1 analytics: product,and 1 business tools integrated into LEGO® Builder: 3D Instructions. View full SDK list →
LEGO® Builder: 3D Instructions SDKs Summary
LEGO® Builder: 3D Instructions was last scanned for SDKs on 2026-07-03. Below is the overview of third-party companies detected in the app. The full list of SDKs, permissions and unknowns is available here.
AppGoblin saw LEGO® Builder: 3D Instructions uses 13 Development Tools
Unity
Google
Sentry.io
KotlinAppGoblin saw LEGO® Builder: 3D Instructions uses 1 Analytics: Attribution
SingularAppGoblin saw LEGO® Builder: 3D Instructions uses 1 Ad Networks
AppGoblin saw LEGO® Builder: 3D Instructions uses 1 Analytics: Product
FirebaseAppGoblin saw LEGO® Builder: 3D Instructions uses 1 Business Tools
Shopify4.79★
Ratings: 265K
Screenshots
App Description
Scan sets, track your builds, and enjoy intuitive digital instructions.
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.