# Quick STL Viewer vs STL Preview

The clearest difference is ads: Quick STL Viewer at none against STL Preview's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Quick STL Viewer sells 3 in-app purchases, starting at $0.99 per 7 days and STL Preview sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Quick STL Viewer ships an update every 6 days, STL Preview every 3 days. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Quick STL Viewer | STL Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/quick-stl-viewer/id6761406893/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 34 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KEAT MEN TANG](https://appshunter.io/developer/1886302384) | [Enes Akkus](https://appshunter.io/developer/1416782412) |

## What reviewers say

### Quick STL Viewer

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

Instantly open and preview 3D STL files with a smooth, responsive interface. Explore models by rotating and zooming, switch to wireframe mode, and customize colors for better visibility. This app offers a distraction-free viewing experience for checking models or print details on the go.

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan Weekly | $0.99 | per 7 days |
| Pro Plan Yearly | $17.99 | per year |
| Quick STL Viewer Lifetime | $29.99 | one-time |


### STL Preview

[App page](https://appshunter.io/ios/app/stl-preview/id6773179410)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is Quick STL Viewer free?

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

### Is STL Preview free?

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

### Do Quick STL Viewer or STL Preview have ads?

STL Preview shows ads; Quick STL Viewer does not.

### Which is updated more often, Quick STL Viewer or STL Preview?

Quick STL Viewer ships an update every 6 days, and STL Preview every 3 days. Most recently, Quick STL Viewer was updated on October 9, 2026 and STL Preview on October 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.*