# 3D File Viewer vs Quick STL Viewer

The clearest difference is review sentiment: Quick STL Viewer at 100% against 3D File Viewer's 33%. Quick STL Viewer also leads on rating (4.9 vs 4.3) and update cadence (every 6 days vs every 3 weeks). 3D File Viewer's advantage is ratings volume (55 vs 12). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 3D File Viewer sells 4 in-app purchases, starting at $3.99 per month and Quick STL Viewer sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Quick STL Viewer holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 55 and 12 respectively. Written reviews point the same way: 33% of 3D File Viewer's written reviews are positive against 100% of Quick STL Viewer's.

3D File Viewer ships an update every 3 weeks, Quick STL Viewer every 6 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | 3D File Viewer | Quick STL Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (55 ratings)](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/quick-stl-viewer/id6761406893/reviews)** |
| Number of ratings | **55** | 12 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 76 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) | [KEAT MEN TANG](https://appshunter.io/developer/1886302384) |

## What reviewers say

### 3D File Viewer

[App page](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064)

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

**Highlights:** Supports over 20 3D file formats, Fast and smooth 3D file viewing, Zoom, rotate, and pan with touch controls, Open files from Files app or other apps, Lightweight and easy to use, No account required

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - Monthly | $3.99 | per month |
| Remove Ads - Annual | $29.99 | per year |
| Remove Ads - Lifetime | $29.99 | one-time |
| Remove Ads | $29.99 | one-time |


### Quick STL Viewer

[App page](https://appshunter.io/ios/app/quick-stl-viewer/id6761406893)

Easily open and preview 3D STL files in a smooth, responsive environment. Inspect models with rotation, zoom, and wireframe modes. Customize colors for better visibility without needing an account.

**Highlights:** Instant STL file opening, Smooth 3D model exploration, Rotate and zoom functionality, Wireframe mode for mesh inspection, Customizable object and background colors, No account required

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan Weekly | $2.99 | per 7 days |
| Pro Plan Yearly | $24.99 | per year |
| Quick STL Viewer Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is 3D File Viewer free?

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

### Is Quick STL Viewer free?

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

### Which has better reviews, 3D File Viewer or Quick STL Viewer?

Quick STL Viewer is rated higher. 3D File Viewer averages 4.3 out of 5 from 55 ratings, while Quick STL Viewer averages 4.9 from 12 ratings.

### Do 3D File Viewer or Quick STL Viewer have ads?

Neither 3D File Viewer nor Quick STL Viewer shows ads.

### Which is updated more often, 3D File Viewer or Quick STL Viewer?

3D File Viewer ships an update every 3 weeks, and Quick STL Viewer every 6 days. Most recently, 3D File Viewer was updated on November 5, 2026 and Quick STL Viewer on November 5, 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.*