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LEGO® Builder: 3D Instructions

LEGO® Builder: 3D Instructions

Build solo or as a team.

290K ratings
3811 reviews
#99 in free Entertainment
🔧 Utilities
🎬 Entertainment
Free

Details

Released
December 5, 2019
Updated
October 20, 2026

Developer

LEGO
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LEGO® Builder: 3D Instructions screenshot #1 for iPhone
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LEGO® Builder: 3D Instructions screenshot #8 for iPhone
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About

This app provides interactive 3D building instructions for LEGO sets. It allows users to zoom, rotate, and view models from all angles, with step-by-step guidance. It also features a collaborative building mode for multiple users and a digital library of thousands of instruction manuals.

✓Interactive 3D building instructions
✓Zoom, rotate, and view from all angles
✓Step-by-step digital guidance
✓Collaborative 'Build Together' mode
✓Digital library of thousands of instructions
✓Track building progress and brick count
Show original description

What users say about LEGO® Builder

Reviews of LEGO® Builder are mostly positive: the Entertainment app is rated 4.8/5 from 290K App Store ratings. What users like most: easy to use, helpful for building sets. Top complaints: crashes when using sticker steps, missing instructions for older/retired sets. Summarized from real user reviews.

Positive things

  • 🚀Easy to use
  • 👍Helpful for building sets
  • 🤖Great 3D instructions
  • 💡Ability to save built sets
  • 🎨Organized by theme and year

Negative things

  • 🐛Crashes when using sticker steps
  • 🔍Missing instructions for older/retired sets
  • 🔍Incomplete set of instructions for newer sets
  • 🔍Difficult to navigate and find specific sets
  • 🔍Inability to add older sets to collection
See all reviews

What's New in LEGO® Builder

4.3.11

October 20, 2026

We’ve made the LEGO Builder 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!

More

Charts

Top Free

📉 99-6

Entertainment

This app dropped -6 positions in Entertainment chart.

Last updated on November 1, 2026.

Events

Read more about Let your creativity bloom.
HappeningSpecial Event

Let your creativity bloom.

Bring your home to life, one build at a time.

Oct 15, 2026 — Nov 14, 2026

Read More

Read more about Build Stitch with the besties.
Event EndedSpecial Event

Build Stitch with the besties.

Team up and build your own Ohana.

Oct 6, 2026 — Oct 21, 2026

Read More

Read more about The Magic Starts Here.
Event EndedSpecial Event

The Magic Starts Here.

Discover the world of LEGO® Harry Potter™

Sep 25, 2026 — Oct 26, 2026

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

Colour

Colour on the pieces are hard to discern between black, dark grey or light grey
BCbad colour

Best thing ever

This is so much easier then using the book. It explained where it should go, you can move it around if you don’t understand. Whoever thought of this, thank you
IPI can’t select a password

Lego ninjago

Me pareció
Súper soy de Ecuador
ALALEX LATINOEC

Legos

So cool!!!
LBLegos builders

Can’t build together

Brought a 3k piece set specifically because you can build it together thru the app. Well it doesn’t work. What a waste. The app doesn’t let us build together. No instructions on how to do it so I looked it up online and apparently it’s no longer an option or the app is broken.
FFirebomb28
See 3806 more reviews

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User experience

🐞

Reported Bugs

4 issues

Sets disappearing from collection after updates

Bug

Inability to log in and save collection

Bug

Slow loading and reloading of instructions

Bug

Zoom and navigation issues on instructions

Bug
✨

Requested Features

5 requests

Add more older/retired sets

Feature

Improve navigation and search functionality

Feature

Allow adding of older sets to collection

Feature

Implement wishlist feature

Feature

Add more personalization options for profiles

Feature

FAQ

What does the LEGO Builder app do?

The LEGO Builder app provides official 3D building instructions for LEGO sets. It offers an interactive experience where you can zoom, rotate, and view models from every angle, with clear step-by-step digital guidance to help you build your sets.

What are the key features of the LEGO Builder app?

Key features include an intuitive 3D building experience, step-by-step digital instructions, a collaborative 'Build Together' mode for multiple users, a digital library of thousands of instructions, and the ability to track your building progress and total bricks built.

Is the LEGO Builder app free to use?

Yes, the LEGO Builder app is completely free to download and use. There are no in-app purchases or advertisements mentioned in the app's description.

What are the system requirements for the LEGO Builder app?

The app requires a stable internet connection to function, as it accesses a digital library of instructions and may update with new content. Specific device compatibility is not detailed, but it is designed for mobile devices.

How can I use the 'Build Together' feature?

The 'Build Together' feature allows multiple builders to collaborate on a single LEGO set. You can share a PIN code to join as a host or builder, divide tasks, and take turns completing building steps to finish the model as a group.