# VOID 3D vs STL Simple Viewer

The clearest difference is in-app purchases: VOID 3D at none against STL Simple Viewer's 4. VOID 3D also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. VOID 3D asks for nothing beyond the download.

VOID 3D ships an update every 2 months, STL Simple Viewer every 5 months. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | VOID 3D | STL Simple Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (909 ratings)](https://appshunter.io/ios/app/stl-simple-viewer/id1493598400/reviews)** |
| Number of ratings | — | **909** |
| Positive reviews | — | 18.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 107 MB | 19 MB |
| Requires iOS | **8.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Chengdu Miyo Network Technology Co., Ltd.](https://appshunter.io/developer/1077175039) | [Victor Bovio](https://appshunter.io/developer/327627515) |

## What reviewers say

### VOID 3D

[App page](https://appshunter.io/ios/app/void-3d-3d-model-ar-viewer/id1225147838)

**Features:** macOS Compatibility

**In-app purchases:** none


### STL Simple Viewer

[App page](https://appshunter.io/ios/app/stl-simple-viewer/id1493598400)

Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.

**Highlights:** View ASCII and Binary STL files, Load STL from ZIP, Rotate, pan, and zoom, Orthogonal and Perspective modes, Model info (triangle count, bounding box), Rendering options (faces, edges, transparency), Clipping plane for interiors

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version (1 week plan) | $0.99 | per 7 days |
| Pro version (1 month plan) | $1.99 | per month |
| Remove Ads | $2.99 | one-time |
| Export Pack | $3.99 | one-time |

**What reviewers like**

- 🚀 Simple and intuitive viewer
- 👍 Useful viewing options
- 💡 Supports multiple file formats

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔋 High battery consumption
- 🚨 Excessive and intrusive ads
- 🔍 Limited functionality for larger files

**Reported bugs**

- App crashes when opening larger STL files
- Inability to open some file formats
- Ads continue to appear even after paying for ad removal

**Requested features**

- Add ability to save color/lighting settings
- Improve stability and reduce crashes
- Provide an ad-free paid version


## Frequently asked questions

### Is VOID 3D free?

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

### Is STL Simple Viewer free?

STL Simple Viewer is free to download, with in-app purchases available.

### Do VOID 3D or STL Simple Viewer have ads?

STL Simple Viewer shows ads; VOID 3D does not.

### Which is updated more often, VOID 3D or STL Simple Viewer?

VOID 3D ships an update every 2 months, and STL Simple Viewer every 5 months. Most recently, VOID 3D was updated on October 12, 2026 and STL Simple Viewer on October 16, 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.*