# Open3D vs 3D Spatial Viewer

The clearest difference is ads: 3D Spatial Viewer at none against Open3D's shown. Open3D's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.0 vs 27.0). On price, in-app purchases and device support there is nothing between them.

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

Open3D ships an update every 2 days, 3D Spatial Viewer every 3 weeks. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Open3D | 3D Spatial Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/open3d-stl-and-3d-model-viewer/id6772109964/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Ad-supported | — |
| Size | 77 MB | 13 MB |
| Requires iOS | **15.0** | 27.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Rajesh Konatala](https://appshunter.io/developer/1882436576) | [GIOVANNI BATTISTA](https://appshunter.io/developer/6771637292) |

## What reviewers say

### 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


### 3D Spatial Viewer

[App page](https://appshunter.io/ios/app/3d-spatial-viewer/id6772415051)

**Features:** macOS Compatibility, SharePlay

**In-app purchases:** none


## Frequently asked questions

### Is Open3D free?

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

### Is 3D Spatial Viewer free?

3D Spatial Viewer is free to download, with no in-app purchases.

### Do Open3D or 3D Spatial Viewer have ads?

Open3D shows ads; 3D Spatial Viewer does not.

### Which is updated more often, Open3D or 3D Spatial Viewer?

Open3D ships an update every 2 days, and 3D Spatial Viewer every 3 weeks. Most recently, Open3D was updated on October 8, 2026 and 3D Spatial Viewer on October 17, 2026.

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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.*