LEGO® Builder vs CaDA GO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
CaDA GO
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The combination of CaDA GO children's programming software and the minimal set of CaDA smart building blocks perfectly presents your creative work! Various ideas can be realized by simple drag and drop programming modules. CaDA GO software needs to be used with cada block master control. Support remote control, programming, gyroscope, voice control and other modes.
Screenshots
Verdict
The clearest difference is chart position: LEGO® Builder at #105 against CaDA GO's unranked. CaDA GO's advantage is iOS requirement (9.0 vs 15.1). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.
| Parameter | LEGO® Builder | CaDA GO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (289K ratings) — better | — |
| Positive reviews | 77.6% of reviews | — |
| Number of ratings | 289K — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #105 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 9.0 — better |
| Further details — not scored | ||
| Size | 264 MB | 182 MB |
| Age rating | 4+ | 4+ |
| Developer | LEGO | 烁航 杨 |
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
CaDA GO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LEGO® Builder
No in-app purchases
CaDA GO
No in-app purchases









