# STL Simple Viewer vs DSPIAE Hub

The clearest difference is rating: STL Simple Viewer at 4.3 against DSPIAE Hub's 1.2. STL Simple Viewer also leads on ratings volume (917 vs 5) and review sentiment (18% vs 0%). DSPIAE Hub's advantage is in-app purchases (none vs 4) and ads (none vs shown). 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. DSPIAE Hub asks for nothing beyond the download.

STL Simple Viewer holds the better App Store score, 4.3 against 1.2. That said, the two scores are not equally well evidenced: STL Simple Viewer has 917 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 18% of STL Simple Viewer's written reviews are positive against 0% of DSPIAE Hub's.

STL Simple Viewer ships an update every 5 months, DSPIAE Hub monthly. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | STL Simple Viewer | DSPIAE Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (917 ratings)](https://appshunter.io/ios/app/stl-simple-viewer/id1493598400/reviews)** | [1.2 (5 ratings)](https://appshunter.io/ios/app/dspiae-hub/id1634152676/reviews) |
| Number of ratings | **917** | 5 |
| Positive reviews | **18.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 130 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Victor Bovio](https://appshunter.io/developer/327627515) | [上海漫讯贸易有限公司](https://appshunter.io/developer/1649013591) |

## What reviewers say

### 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


### DSPIAE Hub

[App page](https://appshunter.io/ios/app/dspiae-hub/id1634152676)

This app provides model-making tools and resources, including product information, tutorials, and customer support. It also features a color mixing assistant and connectivity for smart tools.

**Highlights:** Product tool descriptions, Usage tutorials, After-sales support, Dealer information, New product notifications, Color mixing assistant, Smart tool connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is STL Simple Viewer free?

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

### Is DSPIAE Hub free?

DSPIAE Hub is free to download, with no in-app purchases.

### Which has better reviews, STL Simple Viewer or DSPIAE Hub?

STL Simple Viewer is rated higher. STL Simple Viewer averages 4.3 out of 5 from 917 ratings, while DSPIAE Hub averages 1.2 from 5 ratings.

### Do STL Simple Viewer or DSPIAE Hub have ads?

STL Simple Viewer shows ads; DSPIAE Hub does not.

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

STL Simple Viewer ships an update every 5 months, and DSPIAE Hub monthly. Most recently, STL Simple Viewer was updated on October 25, 2026 and DSPIAE Hub on October 12, 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.*