# XPSView vs STL Simple Viewer

The clearest difference is ads: XPSView at none against STL Simple Viewer's shown. XPSView also leads on review sentiment (52% vs 18%) and rating (4.5 vs 4.3). STL Simple Viewer's advantage is ratings volume (909 vs 54). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. XPSView sells 3 in-app purchases, starting at $0.99 per month and STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

XPSView holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: STL Simple Viewer has 909 ratings behind it against 54, so its average is the more settled of the two. Written reviews point the same way: 52% of XPSView's written reviews are positive against 18% of STL Simple Viewer's.

Both ship on a similar rhythm, roughly every 5 months. Both last shipped on October 16, 2026.

## The numbers

| Metric | XPSView | STL Simple Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (54 ratings)](https://appshunter.io/ios/app/xpsview/id804593188/reviews)** | [4.3 (909 ratings)](https://appshunter.io/ios/app/stl-simple-viewer/id1493598400/reviews) |
| Number of ratings | 54 | **909** |
| Positive reviews | **52.4% of reviews** | 18.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 3 MB | 19 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RootRise Technologies Pvt. Ltd.](https://appshunter.io/developer/594431033) | [Victor Bovio](https://appshunter.io/developer/327627515) |

## What reviewers say

### XPSView

[App page](https://appshunter.io/ios/app/xpsview/id804593188)

Easily open, read, and convert XPS and OXPS documents on your iOS device. Features include text search, document outlines, and page thumbnails for a smooth reading experience. Convert files to PDF format while preserving all original content and links.

**Highlights:** Read XPS and OXPS documents, Selectable and searchable text, Zoom in and out, Navigate via document outlines, Convert to PDF, Preserve links and metadata, Document management and organization

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium : Monthly Access | $0.99 | per month |
| Premium : Yearly Access | $3.99 | per year |
| Premium : Lifetime Access | $5.99 | one-time |


### 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 XPSView free?

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

### Is STL Simple Viewer free?

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

### Which has better reviews, XPSView or STL Simple Viewer?

XPSView is rated higher. XPSView averages 4.5 out of 5 from 54 ratings, while STL Simple Viewer averages 4.3 from 909 ratings.

### Do XPSView or STL Simple Viewer have ads?

STL Simple Viewer shows ads; XPSView does not.

### Which is updated more often, XPSView or STL Simple Viewer?

XPSView ships an update every 5 months, and STL Simple Viewer every 5 months. Most recently, XPSView was updated on October 16, 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.*