# Model Constructor 3D vs Magnet World

The clearest difference is rating: Magnet World at 4.6 against Model Constructor 3D's 3.6. Magnet World also leads on ads (none vs shown) and ratings volume (177 vs 25). Model Constructor 3D's advantage is in-app purchases (none vs 8) and review sentiment (100% vs 73%). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Magnet World sells 8 in-app purchases, starting at $2.99 per 7 days. Model Constructor 3D asks for nothing beyond the download.

Magnet World holds the better App Store score, 4.6 against 3.6. That said, the two scores are not equally well evidenced: Magnet World has 177 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 73% of Magnet World'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, Magnet World every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Model Constructor 3D | Magnet World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (25 ratings)](https://appshunter.io/ios/app/model-constructor-3d/id1436938843/reviews) | **[4.6 (177 ratings)](https://appshunter.io/ios/app/magnet-world-build-by-number/id1518181977/reviews)** |
| Number of ratings | 25 | **177** |
| Positive reviews | **100.0% of reviews** | 73.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Ad-supported** | Freemium |
| Size | 294 MB | 165 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ben Walker](https://appshunter.io/developer/385443776) | [Vector Labs Limited](https://appshunter.io/developer/1213774149) |

## 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


### Magnet World

[App page](https://appshunter.io/ios/app/magnet-world-build-by-number/id1518181977)

Solve brain teaser puzzles by coloring 3D models of houses and architecture using magnetic balls. Create colorful masterpieces, relieve stress, and sharpen your mental skills with this engaging art and puzzle game.

**Highlights:** 3D magnetic ball coloring, House and architecture building, Voxel model challenges, Color by number puzzles, Stress relief and relaxation, Develop puzzle-solving skills

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Monthly Subscription | $5.99 | per month |
| Unlock All | $5.99 | per 7 days |
| 3 Months Subscription | $17.99 | per 3 months |
| Yearly Subscription | $34.99 | per year |
| Buy 500 Coins | $0.99 | one-time |
| Buy 1500 Coins | $1.99 | one-time |
| Buy 5000 Coins | $4.99 | one-time |


## Frequently asked questions

### Is Model Constructor 3D free?

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

### Is Magnet World free?

Magnet World is free to download, with in-app purchases available.

### Which has better reviews, Model Constructor 3D or Magnet World?

Magnet World is rated higher. Model Constructor 3D averages 3.6 out of 5 from 25 ratings, while Magnet World averages 4.6 from 177 ratings.

### Do Model Constructor 3D or Magnet World have ads?

Model Constructor 3D shows ads; Magnet World does not.

### Which is updated more often, Model Constructor 3D or Magnet World?

Model Constructor 3D ships an update every 2 months, and Magnet World every 3 months. Most recently, Model Constructor 3D was updated on November 2, 2026 and Magnet World on November 3, 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.*