# LEGO® Boost

> App to code and control LEGO creations with drag-and-drop programming. (iPhone/iPad app by LEGO.)

- Source: https://appshunter.io/ios/app/lego-boost/id1217385613 (this page in markdown: same URL + `.md`)
- Developer: [LEGO](https://appshunter.io/developer/347363505)
- Category: Entertainment, Education
- Price: Free
- Rating: 4.60/5 from 4,260 App Store ratings · 392 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 717 MB
- Languages: American English
- Released: 2017-07-24
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/lego-boost/id1217385613/reviews.md

## What is LEGO® Boost?

The LEGO® Boost app is available for download until January 1st.

Combine this app with the LEGO® BOOST Creative Toolbox (17101) set to bring your creations to life!
Enjoy more than 60 fun activities with simple drag-n'-drop coding, watch videos and access digital LEGO Building Instructions. Have fun with LEGO models that can move, talk and respond to real-world events. 

Take your experience to another level with advanced coding. Build and BOOST your own robot toy creations and control them from your mobile device. All it takes is three simple steps: BUILD, CODE and PLAY!

Is your device compatible?
Please go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online.

LEGO® BOOST App Feature List
-	Access digital LEGO® Building Instructions for all 5 LEGO BOOST models included with the 17101 LEGO BOOST Creative Toolbox.
-	BUILD, CODE and PLAY with CODABLE LEGO® models.
-	Bring your LEGO® BOOST creations to life with the simple drag-n'-drop PROGRAMMING interface.
-	Enjoy more than 60 fun ACTIVITIES.
-	Imagine, build and code your own creations. Kick-start your creativity—3 inspirational models included with the app.
-	Combine 17101 LEGO BOOST with the LEGO® City 60194 Arctic Scout Truck to control and drive the vehicle! Use the app to operate the forklift, examine samples with the color sensor, help the whale back into the water and much more.
-	Combine 17101 LEGO BOOST with LEGO® NINJAGO® 70652 Stormbringer and set the Lightning Dragon free! Use the app to control the fearsome beast, fire the shooters, create a color-sensing ejector seat and much more!

-	Go to LEGO.com/devicecheck to check if your device is compatible. Ask your parents’ permission before going online.

LEGO BOOST set (17101) Feature List
-	Includes 844 LEGO® pieces, plus a LEGO Move Hub, Interactive Motor and a Color & Distance Sensor.
-	Move Hub features Bluetooth Low Energy (BLE) connectivity, 2 encoded motors, activation button, internal tilt sensor and a light.
-	Interactive Motor is an encoded motor.
-	Color & Distance Sensor detects distance, motion and color, and can also function as a light.
-	Create and code Vernie the Robot, Frankie the Cat, the M.T.R.4 (Multi-Tooled Rover 4), the Guitar 4000 and the AutoBuilder.
-	Rotate Vernie’s head to activate its shoulder-mounted spring-loaded shooter.
-	Build the M.T.R.4 (Multi-Tooled Rover 4) and try out the different tool and customization attachments for an array of exciting activities.
-	Learn songs and rock out with the Guitar4000!
-	Look after your own pet with Frankie the Cat. Be sure to feed it the right food—or it might get upset!
-	Construct, code and operate the AutoBuilder to produce real miniature LEGO® models.
-	Build and code robots and models, and complete exciting activities with the playmat and intuitive LEGO® BOOST app.

The LEGO® BOOST Creative Toolbox set (17101) is sold separately.

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 

There’s no third-party advertising. LEGO marketing content and information is served, for instance LEGO news about LEGO sets and other LEGO games, in hope of inspiring children’s creative play.

LEGO and the LEGO logo are trademarks of the LEGO Group. ©2017 The LEGO Group.

## Key features

- Drag-and-drop coding interface
- Digital LEGO building instructions
- Over 60 fun activities
- Codeable LEGO models
- Control LEGO creations from mobile device
- Combine with other LEGO sets

## What do users think of LEGO® Boost?

Overall sentiment: positive

**Pros**

- 🚀 Fun and engaging
- 👍 Great for learning coding
- 🎨 Excellent for creativity
- 💡 Impressive programming options
- 🤖 Enjoyable building experience

**Cons**

- 🐛 Connectivity issues
- 🔋 Battery life problems
- 📚 Unclear instructions
- 🤔 Confusing programming interface
- 🔍 Difficulty finding parts

**Commonly reported bugs**

- App crashes and freezes
- Firmware update failures
- Bluetooth connection problems
- Lost progress and build instructions
- Sensor and motor issues

**Most requested features**

- More advanced programming blocks
- Ability to save and load projects
- Improved instructions and documentation
- Compatibility with more devices
- Easier part organization

## Recent user reviews (10 of 392)

All indexed reviews: https://appshunter.io/ios/app/lego-boost/id1217385613/reviews.md

### 4/5 — Good but

*2026-02-23*

Why are the videos not appearing ? Just wondering

### 1/5 — The worst ever

*2026-01-12, version 1.9.8*

Full of glitches.  Way to slow for the price of the let sets. Not worth it.

### 5/5 — Technology in 2025

*2025-08-30, version 1.9.8*

I tested it in 2025 and I hate the 6 AAA batteries

### 5/5 — Good

*2025-08-20*

The Lego boost is really good, but I’m wondering where the Lego boot Star Wars app is in the App Store

**Developer response:** Thanks for your review. The LEGO® BOOST Star Wars™ app is now only available to download as part of the LEGO Powered Up app. LEGO Star Wars™ BOOST can only be programmed with the LEGO Powered Up app. It’s not compatible with other apps or software. - Alina, LEGO® Customer Service

### 3/5 — Can’t sign in to Lego account anymore

*2025-08-07*

So the app is so great and awesome but there’s one problem when I try to sign into my Lego account I sign in but then it doesn’t show on the Lego boost that I didn’t sign in. I do it multiple times, but never works. Plus, I even tried to re-download the app. But it never works. So even when I try to sign in it shows Lego life but Lego life is deleted so they puted a Lego play app. So if they updated Lego life. Why didn’t they update Lego boost? That’s why I’m not signing in. Please fix that Lego.

**Developer response:** We’re sorry you’re having trouble with our app, but we’re here to help! Just get in touch at LEGO.build/Service-Apple with a little more information and we’d be happy to take a look into things. 📞🔎 - Alina, LEGO® Customer Service

### 5/5 — 제미있당

*2025-07-30*

너무 재미있어요! 집에서 코딩을 이렇게 싑게 할수있다니 너무 제미있어요!

### 5/5 — Easy to use

*2025-07-13*

I got a second hand Lego Boost set in July 2025. I wasn’t sure if this app would work based on the other reviews but it worked perfecly with my iPhone 14. It paired with the robot easily and I was able to work through all of the Frankie the cat programs without any issues.

**Developer response:** That's great to hear! Have fun building and programming! ✨ -Jane, LEGO® Customer Service

### 4/5 — 2 petits problèmes

*2025-05-25*

L’application est vraiment très bien malgré 2 petits problèmes : le premier est sur le lego de la glace ou les commandes pour lever et baisser la pince sont inversées ce qui est très perturbant.
Le second est le fait que je n’arrive pas à accéder au petite vidéo.
Si cela pouvait être réglé, se serait vraiment bien.

**Developer response:** Merci d'avoir pris le temps de nous partager votre expérience sur l'application. Nous aimerions en savoir plus concernant ces deux problèmes ! Contactez nos experts via LEGO.build/Service-Apple pour qu'on regarde ça ensemble. 🔎 - Marine, Service Client LEGO®

### 5/5 — Best game ever!

*2025-04-06*

even though Lego discontinued these Lego sets I still have some of them.I will never give boost up

### 4/5 — Loop

*2025-02-22, version 1.9.8*

I wonder if I can make it control the Lego loop coaster I hope it does work to make it an auto and make it stop would be so op And gloated but unfortunately roblox is a better game but Kirby will still be to op

## Frequently asked questions about LEGO® Boost

### What does the LEGO Boost app do?

The LEGO Boost app allows you to bring your LEGO creations to life by providing a simple drag-and-drop coding interface. You can build and code various LEGO models, make them move, talk, and respond to their environment. The app also includes digital building instructions for specific models and over 60 fun activities to engage with.

### What are the key features of the LEGO Boost app?

Key features include a drag-and-drop programming interface for easy coding, access to digital building instructions for all five included LEGO BOOST models, and over 60 engaging activities. You can also imagine, build, and code your own unique creations, and combine the app with other LEGO sets like LEGO City and LEGO NINJAGO for expanded play.

### Is the LEGO Boost app free to use?

Yes, the LEGO Boost app is free to download and use. It is designed to work with the separately sold LEGO BOOST Creative Toolbox set (17101). There are no in-app purchases or advertisements mentioned for the app itself.

### What devices are compatible with the LEGO Boost app?

Device compatibility can be checked by visiting LEGO.com/devicecheck. It is recommended to ask for parental permission before going online and downloading the app.

### What can I build and code with LEGO Boost?

With the LEGO Boost Creative Toolbox set and app, you can build and code five distinct models: Vernie the Robot, Frankie the Cat, the M.T.R.4 (Multi-Tooled Rover 4), the Guitar 4000, and the AutoBuilder. Each model offers unique interactive features and activities that can be controlled and customized through the app's coding interface.

## Version history (last 5 releases)

### 1.9.10 — 2026-08-25

Minor bug fixes

### 1.9.9 — 2026-04-21

Minor bug fixes

### 1.9.8 — 2022-01-12

Maintenance Update

### 1.9.7 — 2021-06-25

Font Fixed.

### 1.9.6 — 2020-10-26

Bug fixes

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All apps by LEGO: https://appshunter.io/developer/347363505

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*