Comparison

LEGO® Powered Up vs HAPPY BUILD

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

Head to head
About

LEGO® Powered Up

Control motorized LEGO sets like trains and the Batmobile via Bluetooth. Bring your custom LEGO creations to life by coding movements and sounds using drag-and-drop programming. Experience interactive play with lights, sensors, and motors.

Highlights
  • Bluetooth control for LEGO vehicles
  • Customizable coding for models
  • Drag-and-drop programming
  • Add sounds and lights
  • Control speed and direction
  • Bring custom builds to life
Features
Read full description

Combine this app with the LEGO DC Super Heroes App-Controlled Batmobile (76112), the LEGO City Cargo Train (60198), or the LEGO City Passenger Train (60197) (each sold separately) to operate the motorized engines via Bluetooth controls, or use your imagination and build entirely new creations using LEGO Powered Up components and bring them to life by coding them. Make your models move and respond to real-world events. The LEGO Powered Up app puts you in the driver’s seat of the awesome 4-wheel-drive Batmobile to speed through the streets of GOTHAM CITY™. Drive forwards, backwards, left and right… or pull 360-degree turns! You can even activate cool tricks and stunts as you become the Dark Knight and fight crime. You can customize and code your Batmobile tricks and choose your sounds and movements – pretty awesome! The LEGO Powered Up app also controls LEGO trains to haul goods or pick up passengers around LEGO City. You can control the speed, change directions, and bring even more life to your play with various sounds such as a whistle, passenger announcement, railroad crossing bell, and more! The Bluetooth remote control app and the remote control handset included in the LEGO City train sets aren’t compatible with older infrared remote-controlled LEGO train sets. Thanks to Powered Up components like hubs, motors, sensors, and lights you will be able to bring your customized creations to life. You can also bring your existing LEGO models to life. Is your device compatible? Please go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online. The LEGO Powered Up App Feature List - Access control panels for DC Super Heroes App-Controlled Batmobile, LEGO City Cargo Train or LEGO City Passenger Train. - Control speed and direction of LEGO vehicles with a variety of exciting interfaces. - Add playful sounds and take your play to the next level. - Use LEGO Powered Up hardware components in your customized models to bring them to life! - Code movements and sounds for your models to create real-life behaviors. - Simple, easy-to-understand programming language based on drag’n’drop coding. LEGO and the LEGO logo are trademarks of the LEGO Group. ©2019 The LEGO Group

About

HAPPY BUILD

Control Xinyu Bluetooth toy cars with your mobile device. Offers multiple control methods like buttons, gyroscope, voice commands, and programming for varied play experiences.

Highlights
  • Bluetooth connectivity
  • Multiple control modes
  • Gyroscope control
  • Voice command control
  • Action programming
Features
Read full description

This is the remote control App software for Xinyu Bluetooth products. Connect with the cool bluetooth toy cars of Xinyu various series through data bluetooth and audio bluetooth. It contains a variety of different styles of control methods, including: conventional button remote control, gyroscope re-sensing remote control, line drawing remote control, voice command control, and action programming control modes, allowing you to experience different fun!

Screenshots

LEGO® Powered Up4 screens
HAPPY BUILD4 screens

Verdict

The call

The clearest difference is rating: LEGO® Powered Up at 3.6 against HAPPY BUILD's 3.0. LEGO® Powered Up also leads on review sentiment (42% vs 17%) and ratings volume (555 vs 7). HAPPY BUILD's advantage is update cadence (every 4 weeks vs every 2 months) and iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and monetization model 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

LEGO® Powered Up holds the better App Store score, 3.6 against 3.0. That said, the two scores are not equally well evidenced: LEGO® Powered Up has 555 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 42% of LEGO® Powered Up's written reviews are positive against 17% of HAPPY BUILD's.

UpkeepUpdate frequency

LEGO® Powered Up ships an update every 2 months, HAPPY BUILD every 4 weeks. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
LEGO® Powered Up versus HAPPY BUILD: the parameters behind the verdict, then further details
ParameterLEGO® Powered UpHAPPY BUILD
PriceFreeFree
Rating3.6 (555 ratings) — better3.0 (7 ratings)
Positive reviews41.5% of reviews — better16.7% of reviews
Number of ratings555 — better7
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.09.0 — better
Further details — not scored
Size1.5 GB375 MB
Age rating4+4+
DeveloperLEGO睦彬 王

Customer experience

LEGO® Powered Up

All ratings550 ratings
Positive61.8%
Neutral8.2%
Negative30.0%
Written reviews407 reviews
Positive41.5%
Neutral15.2%
Negative43.2%

HAPPY BUILD

All ratings7 ratings
Positive42.9%
Neutral14.3%
Negative42.9%
Written reviews6 reviews
Positive16.7%
Neutral16.7%
Negative66.7%

Bugs and requests

LEGO® Powered Up

Reported bugs

12 issues
  • Bluetooth connection drops
  • Motors not controllable through app
  • Timer blocks don't work
  • Motor code blocks don't work
  • Coding canvas is broken
Show 7 more
  • Loses Bluetooth connection randomly
  • Coding blocks not working properly
  • App doesn't run in background
  • Doesn't work on latest iOS
  • Doesn't work with new hubs and motors
  • Can only connect one hub at a time
  • Train stops when app closes

Requested features

12 requests
  • Add more sound effects
  • Add more music to the playlist
  • Allow custom sounds
  • Improve parameters
  • Add more controls
Show 7 more
  • Add more widgets
  • Allow custom themes
  • Add documentation
  • Add support for LEGO Boost and Mindstorms
  • Add loop option for sounds
  • Add dark mode option
  • Add advanced analytics dashboard

HAPPY BUILD

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

LEGO® Powered Up

No in-app purchases

None

HAPPY BUILD

No in-app purchases

Questions

Is LEGO® Powered Up free?
LEGO® Powered Up is free to download, with no in-app purchases.
Is HAPPY BUILD free?
HAPPY BUILD is free to download, with no in-app purchases.
Which has better reviews, LEGO® Powered Up or HAPPY BUILD?
LEGO® Powered Up is rated higher. LEGO® Powered Up averages 3.6 out of 5 from 555 ratings, while HAPPY BUILD averages 3.0 from 7 ratings.
Do LEGO® Powered Up or HAPPY BUILD have ads?
Neither LEGO® Powered Up nor HAPPY BUILD shows ads.
Which is updated more often, LEGO® Powered Up or HAPPY BUILD?
LEGO® Powered Up ships an update every 2 months, and HAPPY BUILD every 4 weeks. Most recently, LEGO® Powered Up was updated on November 4, 2026 and HAPPY BUILD on November 3, 2026.

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