# GLB vs Castle Model Viewer

The clearest difference is in-app purchases: Castle Model Viewer at none against GLB's 5. Castle Model Viewer also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. GLB sells 5 in-app purchases, starting at $9.99 per 7 days. Castle Model Viewer asks for nothing beyond the download.

## The numbers

| Metric | GLB | Castle Model Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/castle-model-viewer/id6752208775/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | — | Free |
| Size | 46 MB | 72 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yusuf Baha Erarslan](https://appshunter.io/developer/1788043729) | [MICHALIS KAMBURELIS](https://appshunter.io/developer/1838215378) |

## What reviewers say

### GLB

[App page](https://appshunter.io/ios/app/glb-3d-model-generator/id6749620007)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Monthly Subscription | $29.99 | per month |
| 3 Credits | $6.99 | one-time |
| 10 Credits | $19.99 | one-time |
| 30 Credits | $49.99 | one-time |


### Castle Model Viewer

[App page](https://appshunter.io/ios/app/castle-model-viewer/id6752208775)

View and interact with a wide range of 2D and 3D model formats. Explore models, play animations, and save screenshots. Supports various file types including glTF, X3D, and OBJ, with options to open ZIP archives containing models and textures.

**Highlights:** Supports glTF, X3D, VRML, IFC, Spine JSON, and more, Open ZIP files with models and textures, Change navigation types (walk, fly, examine, 2D), Play animations, Save screenshots, Display scene statistics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GLB free?

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

### Is Castle Model Viewer free?

Castle Model Viewer is free to download, with no in-app purchases.

### Do GLB or Castle Model Viewer have ads?

Neither GLB nor Castle Model Viewer shows ads.

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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.*