Comparison

LEGO® Builder vs LEGO® TECHNIC® AR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LEGO® Builder

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.

Highlights
  • 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
Read full description

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.

About

LEGO® TECHNIC® AR

Enhance your LEGO Technic building experience with augmented reality. Interact with models through realistic simulations, games, and educational content. Explore vehicles and learn about engineering with interactive AR challenges.

Highlights
  • AR model interaction
  • Realistic sound effects
  • Robotics and engineering learning
  • Racing car simulations
  • Interactive mini-games
  • Life-size model viewing
  • X-ray view
Features
Read full description

Take your LEGO® Technic™ experience to a new level of realism: • Get unique experiences designed especially for each LEGO Technic AR model. • Enjoy realistic sound effects and lifelike features and functions. • Learn about robotics, engineering, rock sampling and more when you combine the AR app with the LEGO Technic NASA Mars Rover Perseverance (42158) model. • Explore LEGO Technic racing cars using the AR app to see the racetrack appear in front of you as you test your racing skills, play mini-games and beat your own record, and see trackside features like pitstops or grandstands appear (dependent on the model you are playing with). • Take the Yamaha MT-10 SP for a test drive in AR with throttle, brakes, gear shifting and driver dashboard, all based on the real Yamaha controls. See how the real vehicle or the LEGO model would look, life-size in your room, or use the x-ray view to see inside the motorcycle. Here are some models you can explore with the AR app… • LEGO Technic Formula E® Porsche 99X Electric (42137) • LEGO Technic Ford Mustang Shelby® GT500® (42138) • LEGO Technic NASA Mars Rover Perseverance (42158) • LEGO Technic Yamaha MT-10 SP (42159) … and the list keeps growing! (Remember that each of these sets is sold separately.) Each of these models comes with its own unique AR experience. Whether it’s the Yamaha MT-10 SP, the Formula E Porsche race car, the Ford Mustang Shelby GT500 or the NASA Mars Rover Perseverance, you’ll be able to put your skills to the test with augmented realism. Is your device compatible? Please go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online. For app support, contact LEGO Consumer Service. For contact details, refer to http://service.LEGO.com/contactus Our privacy policy and terms of use for apps are accepted if you download this app. Read more on http://aboutus.LEGO.com/legal-notice/privacy-policy and http://aboutus.LEGO.com/legal-notice/terms-of-use-for-apps LEGO and the LEGO logo are trademarks of the LEGO Group. ©2023 The LEGO Group. Under license of Porsche AG. Formula E is a trademark of Formula E Holdings Ltd. Ford Motor Company Trademarks and Trade Dress used under license to the LEGO Group. Shelby® and GT500® are registered trademarks of Carroll Shelby Licensing, Inc. and used under license. NASA Insignia and identifiers provided and used with permission of NASA. JPL logo provided and used with permission of the California Institute of Technology. Yamaha, the Tuning Fork Mark, MT-10 SP and the likeness there of are trademarks of Yamaha Motor Corp., USA & Yamaha Motor Co., Ltd used under license.

Screenshots

LEGO® Builder4 screens
LEGO® TECHNIC® AR4 screens

Verdict

The call

The clearest difference is ratings volume: LEGO® Builder at 282K against LEGO® TECHNIC® AR's 3.1K. LEGO® Builder also leads on update cadence (every 3 weeks vs every 2 months) and chart position (#114 vs unranked). LEGO® TECHNIC® AR's advantage is iOS requirement (13.0 vs 15.1). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for LEGO® Builder against 4.7 for LEGO® TECHNIC® AR. That said, the two scores are not equally well evidenced: LEGO® Builder has 282K ratings behind it against 3.1K, so its average is the more settled of the two. Written reviews are what separate them: 77% of LEGO® Builder's written reviews are positive against 72% of LEGO® TECHNIC® AR's.

UpkeepUpdate frequency

LEGO® Builder ships an update every 3 weeks, LEGO® TECHNIC® AR every 2 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 7 level
LEGO® Builder versus LEGO® TECHNIC® AR: the parameters behind the verdict, then further details
ParameterLEGO® BuilderLEGO® TECHNIC® AR
PriceFreeFree
Rating4.8 (282K ratings) — better4.7 (3.1K ratings)
Positive reviews77.5% of reviews — better72.4% of reviews
Number of ratings282K — better3.1K
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#114 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size260 MB853 MB
Age rating4+4+
DeveloperLEGOLEGO

Customer experience

LEGO® Builder

All ratings281,529 ratings
Positive95.4%
Neutral2.0%
Negative2.6%
Written reviews3,727 reviews
Positive77.5%
Neutral6.4%
Negative16.2%

LEGO® TECHNIC® AR

All ratings3,060 ratings
Positive93.8%
Neutral3.3%
Negative2.9%
Written reviews185 reviews
Positive72.4%
Neutral10.3%
Negative17.3%

User reviews

LEGO® Builder

From 282K App Store ratings

What we love

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

Room to improve

  • 🐛 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

LEGO® TECHNIC® AR

From 3.1K App Store ratings

What we love

  • 🚀 Jaw-dropping experience
  • 👍 Realistic racing and AR
  • 🤩 Amazing build experience
  • 💡 Customizable and competitive
  • 🤩 Immersive and engaging

Room to improve

  • 🐛 Scanning issues and glitches
  • 🔋 Battery-intensive
  • 🤔 Limited content and features
  • 🤨 Unnecessary for some users

Bugs and requests

LEGO® Builder

Reported bugs

4 issues
  • Sets disappearing from collection after updates
  • Inability to log in and save collection
  • Slow loading and reloading of instructions
  • Zoom and navigation issues on instructions

Requested features

5 requests
  • Add more older/retired sets
  • Improve navigation and search functionality
  • Allow adding of older sets to collection
  • Implement wishlist feature
  • Add more personalization options for profiles

LEGO® TECHNIC® AR

Reported bugs

3 issues
  • Freezing and crashing issues
  • Inability to scan or detect models
  • Glitchy track movement and positioning

Requested features

4 requests
  • More compatible LEGO sets
  • Additional tracks and modes
  • Offline or standalone gameplay
  • Improved scanning and stability

In-app purchases

None

LEGO® Builder

No in-app purchases

None

LEGO® TECHNIC® AR

No in-app purchases

Questions

Is LEGO® Builder free?
LEGO® Builder is free to download, with no in-app purchases.
Is LEGO® TECHNIC® AR free?
LEGO® TECHNIC® AR is free to download, with no in-app purchases.
Which has better reviews, LEGO® Builder or LEGO® TECHNIC® AR?
LEGO® Builder is rated higher. LEGO® Builder averages 4.8 out of 5 from 282K ratings, while LEGO® TECHNIC® AR averages 4.7 from 3.1K ratings.
Do LEGO® Builder or LEGO® TECHNIC® AR have ads?
Neither LEGO® Builder nor LEGO® TECHNIC® AR shows ads.
Which is updated more often, LEGO® Builder or LEGO® TECHNIC® AR?
LEGO® Builder ships an update every 3 weeks, and LEGO® TECHNIC® AR every 2 months. Most recently, LEGO® Builder was updated on September 25, 2026 and LEGO® TECHNIC® AR on September 23, 2026.

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