# Khronos glTF Viewer vs Open3D

The clearest difference is review sentiment: Open3D at 100% against Khronos glTF Viewer's 50%. Open3D also leads on rating (4.8 vs 3.2) and ratings volume (22 vs 6). Khronos glTF Viewer's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Open3D holds the better App Store score, 4.8 against 3.2. Both are backed by a comparable volume of ratings — 6 and 22 respectively. Written reviews point the same way: 50% of Khronos glTF Viewer's written reviews are positive against 100% of Open3D's.

## The numbers

| Metric | Khronos glTF Viewer | Open3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/khronos-gltf-viewer/id6470311948/reviews) | **[4.8 (22 ratings)](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964/reviews)** |
| Number of ratings | 6 | **22** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | **Free** | Ad-supported |
| Size | 34 MB | 77 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [The Khronos Group, Inc.](https://appshunter.io/developer/1713392135) | [Rajesh Konatala](https://appshunter.io/developer/1882436576) |

## 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, Vision Pro support

**In-app purchases:** none


### Open3D

[App page](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964)

Instantly view and inspect a wide range of 3D file formats directly on your device. Offers AR viewing, 3D printing readiness checks, and detailed model specifications without requiring an account or cloud upload.

**Highlights:** Supports over 15 3D file formats, Augmented Reality (AR) viewing via Apple Quick Look, 3D printing readiness checks (manifold, overhangs, wall thickness), On-device processing, no cloud upload required, Detailed model specifications (triangle count, bounding box), Export between GLB and STL formats, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Khronos glTF Viewer free?

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

### Is Open3D free?

Open3D is free to download, with no in-app purchases.

### Which has better reviews, Khronos glTF Viewer or Open3D?

Open3D is rated higher. Khronos glTF Viewer averages 3.2 out of 5 from 6 ratings, while Open3D averages 4.8 from 22 ratings.

### Do Khronos glTF Viewer or Open3D have ads?

Open3D shows ads; Khronos glTF 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.*