# Gloop FREE vs LEGO® Boost

The clearest difference is rating: LEGO® Boost at 4.6 against Gloop FREE's 4.1. LEGO® Boost also leads on ratings volume (4.3K vs 57). Gloop FREE's advantage is review sentiment (83% vs 66%) and iOS requirement (4.3 vs 13.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

LEGO® Boost holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: LEGO® Boost has 4.3K ratings behind it against 57, so its average is the more settled of the two. Written reviews complicate that: 83% of Gloop FREE's written reviews are positive against 66% of LEGO® Boost's, so the app with the better star average is not the one people write more warmly about.

Gloop FREE ships an update every 5 months, LEGO® Boost every 3 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Gloop FREE | LEGO® Boost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (57 ratings)](https://appshunter.io/ios/app/gloop-free/id326101033/reviews) | **[4.6 (4.3K ratings)](https://appshunter.io/ios/app/lego-boost/id1217385613/reviews)** |
| Number of ratings | 57 | **4.3K** |
| Positive reviews | **82.9% of reviews** | 65.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 0 MB | 717 MB |
| Requires iOS | **4.3** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RunSwimFly](https://appshunter.io/developer/324817571) | [LEGO](https://appshunter.io/developer/347363505) |

## What reviewers say

### Gloop FREE

[App page](https://appshunter.io/ios/app/gloop-free/id326101033)

Explore a unique interactive simulation of a viscous, glowing substance. Manipulate its properties by stirring or treating it gently to create dynamic visual effects and even shape it. Supports real-time warping of photos, images, and video on compatible devices.

**Highlights:** Interactive molecular simulation, Dynamic glowing effects, Viscosity and solidification control, Photo and image warping, Real-time video warping

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 😊 Highly addictive and entertaining
- 🎨 Mesmerizing fluid physics simulation
- 💰 Free with no ads
- 🎮 Relaxing and stress-relieving
- 🎯 Simple yet engaging gameplay

**What reviewers complain about**

- 🐛 Crashes after extended play sessions
- 📉 Graphics quality is blurry
- 🔧 Difficult to manipulate without tearing
- ⚠️ Compatibility issues with newer devices
- 🔊 No sound effects

**Reported bugs**

- App unavailable on modern iOS devices
- Crashes on iPad after 5+ minutes of play
- Accelerometer malfunction on iPhone 4
- Blurry graphics during gameplay
- Goop turns yellow and becomes uncontrollable when touched

**Requested features**

- Gravity and tilt controls
- Sound effects for interactions
- Thicker, more viscous goop consistency
- More goop quantity
- Additional shapes and particle types


### 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


## Frequently asked questions

### Is Gloop FREE free?

Gloop FREE is free to download, with no in-app purchases.

### Is LEGO® Boost free?

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

### Which has better reviews, Gloop FREE or LEGO® Boost?

LEGO® Boost is rated higher. Gloop FREE averages 4.1 out of 5 from 57 ratings, while LEGO® Boost averages 4.6 from 4.3K ratings.

### Do Gloop FREE or LEGO® Boost have ads?

Neither Gloop FREE nor LEGO® Boost shows ads.

### Which is updated more often, Gloop FREE or LEGO® Boost?

Gloop FREE ships an update every 5 months, and LEGO® Boost every 3 months. Most recently, Gloop FREE was updated on November 6, 2026 and LEGO® Boost on November 6, 2026.

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