# Octane X vs Khronos glTF Viewer

The clearest difference is rating: Octane X at 3.7 against Khronos glTF Viewer's 3.2. Octane X also leads on ratings volume (31 vs 6). Khronos glTF Viewer's advantage is iOS requirement (16.0 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Octane X holds the better App Store score, 3.7 against 3.2. That said, the two scores are not equally well evidenced: Octane X has 31 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 51% of Octane X's written reviews are positive against 50% of Khronos glTF Viewer's.

## The numbers

| Metric | Octane X | Khronos glTF Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (31 ratings)](https://appshunter.io/ios/app/octane-x/id1609342064/reviews)** | [3.2 (6 ratings)](https://appshunter.io/ios/app/khronos-gltf-viewer/id6470311948/reviews) |
| Number of ratings | **31** | 6 |
| Positive reviews | **51.2% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | Free |
| Size | 1.1 GB | 34 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPad, Mac | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [OTOY inc.](https://appshunter.io/developer/1337195473) | [The Khronos Group, Inc.](https://appshunter.io/developer/1713392135) |

## What reviewers say

### Octane X

[App page](https://appshunter.io/ios/app/octane-x/id1609342064)

This powerful GPU rendering application brings professional-grade 3D rendering capabilities to iPad Pro. It offers a full suite of features for visual effects, motion graphics, gaming, and design, with an interface optimized for touch and Apple Pencil, while also supporting advanced external peripherals.

**Highlights:** Unbiased, spectrally-correct GPU rendering, Optimized touch and Apple Pencil interface, Support for external keyboards, trackpads, and monitors, Node-based material, shader, and scene graph editor, AI Denoiser for production-ready results, ACES, OCIO, and deep pixel EXR rendering

**In-app purchases:** none

**What reviewers like**

- ✨ Powerful rendering capabilities
- 🚀 Excellent performance on Apple Silicon
- 💡 Innovative standalone mode for desktop UI
- 👍 Great image quality and speed improvements
- 🤩 Unbelievable performance on iPad

**What reviewers complain about**

- 🤔 Difficult to install and use
- 😵 Confusing version compatibility
- ⚠️ Requires knowledge to get renders
- 🐌 Slow due to default settings
- 🚫 Limited hardware support (e.g., iPad Pro 2018)

**Reported bugs**

- 🐛 Gray screen on iPadOS 27
- 🐛 Incompatible with iPadOS 17
- 🐛 No Render GPU error on M1 Macs with Sonoma
- 🐛 Grey screen and doesn't load
- 🐛 Not working since iPadOS 17

**Requested features**

- Tutorials for specific materials (hair, glass, water)
- Support for Nomad Sculpt OBJ/GLB import
- UI improvements for Apple Pencil users
- Polygon-based modeling and animation tools
- Add Maya and Houdini support


### 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


## Frequently asked questions

### Is Octane X free?

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

### Is Khronos glTF Viewer free?

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

### Which has better reviews, Octane X or Khronos glTF Viewer?

Octane X is rated higher. Octane X averages 3.7 out of 5 from 31 ratings, while Khronos glTF Viewer averages 3.2 from 6 ratings.

### Do Octane X or Khronos glTF Viewer have ads?

Neither Octane X nor Khronos glTF Viewer shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*