# Model Constructor 3D vs Gun Builder 3D!

The clearest difference is review sentiment: Model Constructor 3D at 100% against Gun Builder 3D!'s 53%. Model Constructor 3D also leads on monetization model (ad-supported vs free with in-app purchases). Gun Builder 3D!'s advantage is rating (4.7 vs 3.6) and ratings volume (4.5K vs 25). On price, ads, in-app purchases and device support there is nothing between them.

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

Gun Builder 3D! holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: Gun Builder 3D! has 4.5K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 100% of Model Constructor 3D's written reviews are positive against 53% of Gun Builder 3D!'s, so the app with the better star average is not the one people write more warmly about.

Model Constructor 3D ships an update every 2 months, Gun Builder 3D! fortnightly. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Model Constructor 3D | Gun Builder 3D! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (25 ratings)](https://appshunter.io/ios/app/model-constructor-3d/id1436938843/reviews) | **[4.7 (4.5K ratings)](https://appshunter.io/ios/app/gun-builder-3d/id1492690876/reviews)** |
| Number of ratings | 25 | **4.5K** |
| Positive reviews | **100.0% of reviews** | 52.9% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 294 MB | 407 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [moztec](https://appshunter.io/developer/932993004) |

## What reviewers say

### Model Constructor 3D

[App page](https://appshunter.io/ios/app/model-constructor-3d/id1436938843)

Assemble realistic plastic models part by part in this engaging puzzle game. Learn how components fit together through intuitive drag-and-drop mechanics. Enjoy different difficulty modes, customize completed models, and compete on global leaderboards.

**Highlights:** Realistic plastic model assembly, Drag-and-drop part snapping, Easy and Hard puzzle modes, Model customization (color, animations), 360-degree model viewing, Global leaderboards

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

**In-app purchases:** none


### Gun Builder 3D!

[App page](https://appshunter.io/ios/app/gun-builder-3d/id1492690876)

Assemble intricate firearms in a 3D puzzle environment. Fulfill orders, earn in-game currency, and unlock new tools and weapon designs. Enjoy smooth animations and a satisfying building experience.

**Highlights:** 3D puzzle gun assembly, Fulfill gun orders, Earn in-game money, Unlock new tools and guns, Upgrade workspace, Smooth animations

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💕 Enjoyable game
- 👍 Minimal ads
- 🤩 Fun and challenging
- 🎉 Great for passing time
- 🙂 Relaxing experience

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🤔 Overly precise part placement
- 💸 Too many ads
- 🤯 Frustrating difficulty
- 😕 Inaccurate gun representations

**Reported bugs**

- Game crashes on launch
- Progress resets or gets deleted
- Parts not registering in correct spots
- Freezing and performance issues
- Compatibility problems on certain devices

**Requested features**

- More levels and guns
- Shooting range or target practice mode
- Camera mode to view built guns
- Less restrictive part placement
- Improved gun accuracy and realism


## Frequently asked questions

### Is Model Constructor 3D free?

Model Constructor 3D is free to download, with no in-app purchases.

### Is Gun Builder 3D! free?

Gun Builder 3D! is free to download, with no in-app purchases.

### Which has better reviews, Model Constructor 3D or Gun Builder 3D!?

Gun Builder 3D! is rated higher. Model Constructor 3D averages 3.6 out of 5 from 25 ratings, while Gun Builder 3D! averages 4.7 from 4.5K ratings.

### Do Model Constructor 3D or Gun Builder 3D! have ads?

Both Model Constructor 3D and Gun Builder 3D! show ads.

### Which is updated more often, Model Constructor 3D or Gun Builder 3D!?

Model Constructor 3D ships an update every 2 months, and Gun Builder 3D! fortnightly. Most recently, Model Constructor 3D was updated on October 15, 2026 and Gun Builder 3D! on October 16, 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.*