# 3D Model Viewer vs STL Viewer · Model File Reader

The clearest difference is review sentiment: 3D Model Viewer at 59% against STL Viewer · Model File Reader's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 3D Model Viewer sells 5 one-off in-app purchases and STL Viewer · Model File Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

3D Model Viewer ships an update every 3 weeks, STL Viewer · Model File Reader every 11 days. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 3D Model Viewer | STL Viewer · Model File Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (328 ratings)](https://appshunter.io/ios/app/3d-model-viewer-ar-view/id1105242878/reviews)** | — |
| Number of ratings | **328** | — |
| Positive reviews | **59.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 28 MB | 30 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [健 钟](https://appshunter.io/developer/1051588602) | [OMER FARUK KIZILTUG](https://appshunter.io/developer/1870337585) |

## What reviewers say

### 3D Model Viewer

[App page](https://appshunter.io/ios/app/3d-model-viewer-ar-view/id1105242878)

View and interact with various 3D model formats in both AR and 3D modes. This intuitive tool supports local and cloud documents, custom backgrounds, and shadow casting. Easily import models via multiple methods and share your creations.

**Highlights:** AR and 3D viewing modes, Supports numerous 3D file formats, Local and cloud document integration, Customizable backgrounds and shadows, Model information display (size, volume, etc.), Multiple import and sharing options

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Model & Screenshot Output | $1.99 | one-time |
| Background from Album | $1.99 | one-time |
| Large File Model | $1.99 | one-time |
| All Features | $5.99 | one-time |

**What reviewers like**

- 👍 Great for viewing 3D models
- 🚀 Fast model loading
- 🔒 Supports many file formats

**What reviewers complain about**

- 🐛 Frequent crashes and errors
- 💸 Intrusive ads and paywalls
- 🤯 Difficult to use interface
- 🚫 Cannot open large files without paying

**Reported bugs**

- App crashes when trying to delete models
- Cannot open .3mf and .glb files
- Texture and shading issues with some models

**Requested features**

- Add support for more 3D file formats
- Improve model rendering quality
- Implement better file management options
- Provide more customization and control over model view


### STL Viewer · Model File Reader

[App page](https://appshunter.io/ios/app/stl-viewer-model-file-reader/id6760254634)

Quickly view and interact with 3D model files. Rotate, zoom, and project models into your environment using augmented reality. Offers customization options and multi-model support.

**Highlights:** Fast STL file viewing, 3D model rotation and zoom, Augmented Reality (AR) projection, Customizable model and background colors, Multi-model support, Grid viewer and lighting options

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Pro | $4.99 | per month |
| Yearly Pro | $19.99 | per year |


## Frequently asked questions

### Is 3D Model Viewer free?

3D Model Viewer is free to download, with in-app purchases available.

### Is STL Viewer · Model File Reader free?

STL Viewer · Model File Reader is free to download, with in-app purchases available.

### Do 3D Model Viewer or STL Viewer · Model File Reader have ads?

Both 3D Model Viewer and STL Viewer · Model File Reader show ads.

### Which is updated more often, 3D Model Viewer or STL Viewer · Model File Reader?

3D Model Viewer ships an update every 3 weeks, and STL Viewer · Model File Reader every 11 days. Most recently, 3D Model Viewer was updated on October 14, 2026 and STL Viewer · Model File Reader on October 11, 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.*