# LEGO® Boost vs Assemble Mechanical Animals

The clearest difference is rating: LEGO® Boost at 4.6 against Assemble Mechanical Animals's 3.3. LEGO® Boost also leads on in-app purchases (none vs 1) and ads (none vs shown). Assemble Mechanical Animals's advantage is update cadence (every 2 weeks vs every 3 months) and iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. Assemble Mechanical Animals sells 1 one-off in-app purchase. LEGO® Boost asks for nothing beyond the download.

LEGO® Boost holds the better App Store score, 4.6 against 3.3. That said, the two scores are not equally well evidenced: LEGO® Boost has 4.3K ratings behind it against 3, so its average is the more settled of the two.

LEGO® Boost ships an update every 3 months, Assemble Mechanical Animals every 2 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | LEGO® Boost | Assemble Mechanical Animals |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (4.3K ratings)](https://appshunter.io/ios/app/lego-boost/id1217385613/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/assemble-mechanical-animals/id1671946393/reviews) |
| Number of ratings | **4.3K** | 3 |
| Positive reviews | 65.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 717 MB | 87 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LEGO](https://appshunter.io/developer/347363505) | [振宇 杨](https://appshunter.io/developer/1437122643) |

## What reviewers say

### LEGO® Boost

[App page](https://appshunter.io/ios/app/lego-boost/id1217385613)

Bring your LEGO creations to life with this app. Combine it with the LEGO BOOST Creative Toolbox set to build, code, and play with interactive robots and models. Enjoy over 60 activities and digital building instructions.

**Highlights:** Digital LEGO Building Instructions, Drag-and-drop programming interface, Over 60 fun activities, Build and code custom creations, Control LEGO models with mobile device, Combine with other LEGO sets

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


### Assemble Mechanical Animals

[App page](https://appshunter.io/ios/app/assemble-mechanical-animals/id1671946393)

Assemble intricate mechanical animal models from various parts. Once built, these robotic creatures come to life, showcasing unique movements and engaging in sci-fi battles with special moves and weapons. Enjoy a simple assembly process with surprising results.

**Highlights:** Assemble mecha-animal models, Variety of robotic animals, Unique movements and sci-fi weapons, Special attack moves, Simple, prompt-based assembly, Robotic creatures come to life

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Animals | $1.99 | one-time |


## Frequently asked questions

### Is LEGO® Boost free?

LEGO® Boost is free to download, with no in-app purchases.

### Is Assemble Mechanical Animals free?

Assemble Mechanical Animals is free to download, with in-app purchases available.

### Which has better reviews, LEGO® Boost or Assemble Mechanical Animals?

LEGO® Boost is rated higher. LEGO® Boost averages 4.6 out of 5 from 4.3K ratings, while Assemble Mechanical Animals averages 3.3 from 3 ratings.

### Do LEGO® Boost or Assemble Mechanical Animals have ads?

Assemble Mechanical Animals shows ads; LEGO® Boost does not.

### Which is updated more often, LEGO® Boost or Assemble Mechanical Animals?

LEGO® Boost ships an update every 3 months, and Assemble Mechanical Animals every 2 weeks. Most recently, LEGO® Boost was updated on November 6, 2026 and Assemble Mechanical Animals on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*