# Khronos glTF Viewer vs ISD Studio 3D

The clearest difference is review sentiment: ISD Studio 3D at 100% against Khronos glTF Viewer's 50%. ISD Studio 3D also leads on iOS requirement (12.2 vs 16.0). Khronos glTF Viewer's advantage is rating (4.3 vs 2.5) and in-app purchases (none vs 1). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. ISD Studio 3D sells 1 one-off in-app purchase. Khronos glTF Viewer asks for nothing beyond the download.

Khronos glTF Viewer holds the better App Store score, 4.3 against 2.5. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews complicate that: 50% of Khronos glTF Viewer's written reviews are positive against 100% of ISD Studio 3D's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Khronos glTF Viewer | ISD Studio 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/khronos-gltf-viewer/id6470311948/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/isd-studio-3d/id6504453776/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | Free |
| Size | 34 MB | 62 MB |
| Requires iOS | 16.0 | **12.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [The Khronos Group, Inc.](https://appshunter.io/developer/1713392135) | [Lilysoft LLC](https://appshunter.io/developer/1752353880) |

## What reviewers say

### Khronos glTF Viewer

[App page](https://appshunter.io/ios/app/khronos-gltf-viewer/id6470311948)

View and interact with 3D models in the glTF 2.0 format. Explore sample models with advanced rendering or display your own files. Experience models in augmented reality.

**Highlights:** View glTF 3D models, Augmented reality mode, Rotate, zoom, and pan models, Browse and display own glTF files, Supports PBR and glTF extensions

**Features:** macOS Compatibility

**In-app purchases:** none


### ISD Studio 3D

[App page](https://appshunter.io/ios/app/isd-studio-3d/id6504453776)

Design and animate 3D characters with this tool. Create custom models by manipulating surfaces, then rig them with skeletons to add motion and export as glTF animations or VRM avatars.

**Highlights:** Create 3D character models, Deform and combine surfaces, Rig models with skeletons, Add motion for animation, Export glTF animations, Export VRM avatars

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


## Frequently asked questions

### Is Khronos glTF Viewer free?

Khronos glTF Viewer is free to download, with no in-app purchases.

### Is ISD Studio 3D free?

ISD Studio 3D is free to download, with in-app purchases available.

### Which has better reviews, Khronos glTF Viewer or ISD Studio 3D?

Khronos glTF Viewer is rated higher. Khronos glTF Viewer averages 4.3 out of 5 from 4 ratings, while ISD Studio 3D averages 2.5 from 2 ratings.

### Do Khronos glTF Viewer or ISD Studio 3D have ads?

Neither Khronos glTF Viewer nor ISD Studio 3D 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.*