# 3dMaster vs Castle Model Viewer

The clearest difference is in-app purchases: Castle Model Viewer at none against 3dMaster's 1. Castle Model Viewer also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. 3dMaster sells 1 one-off in-app purchase. Castle Model Viewer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for 3dMaster against 5.0 for Castle Model Viewer. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | 3dMaster | Castle Model Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/3dmaster/id6449213276/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/castle-model-viewer/id6752208775/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 112 MB | 72 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [海宁 徐](https://appshunter.io/developer/782982060) | [MICHALIS KAMBURELIS](https://appshunter.io/developer/1838215378) |

## What reviewers say

### 3dMaster

[App page](https://appshunter.io/ios/app/3dmaster/id6449213276)

Visualize 3D scenes and animations with support for over 25 3D formats and various texture types. This tool utilizes advanced rendering techniques for improved quality and performance, allowing artists to preview skeletal animations on mobile devices.

**Highlights:** Supports 25+ 3D formats, PBR material system, CSM shadow technology, Order-independent transparency, Full skeletal animation support, Import and switch animations freely, Supports various texture formats

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Advanced Functions | $2.99 | 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 3dMaster free?

3dMaster 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.

### Which has better reviews, 3dMaster or Castle Model Viewer?

3dMaster and Castle Model Viewer are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do 3dMaster or Castle Model Viewer have ads?

3dMaster shows ads; Castle Model Viewer does not.

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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.*