# Autodesk Fusion vs STL Viewer · Model File Reader

The clearest difference is review sentiment: Autodesk Fusion at 60% against STL Viewer · Model File Reader's 0%. Autodesk Fusion also leads on in-app purchases (none vs 3) and ads (none vs shown). STL Viewer · Model File Reader's advantage is rating (5.0 vs 4.5) and update cadence (every 2 weeks vs monthly). On price and device support there is nothing between them.

Both are free to download. STL Viewer · Model File Reader sells 3 in-app purchases, starting at $1.99 per 7 days. Autodesk Fusion asks for nothing beyond the download.

STL Viewer · Model File Reader holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Autodesk Fusion has 4.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 60% of Autodesk Fusion's written reviews are positive against 0% of STL Viewer · Model File Reader's, so the app with the better star average is not the one people write more warmly about.

Autodesk Fusion ships an update monthly, STL Viewer · Model File Reader every 2 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Autodesk Fusion | STL Viewer · Model File Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4.1K ratings)](https://appshunter.io/ios/app/autodesk-fusion/id991074843/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stl-viewer-model-file-reader/id6760254634/reviews)** |
| Number of ratings | **4.1K** | 2 |
| Positive reviews | **59.8% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 124 MB | 31 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Autodesk Inc.](https://appshunter.io/developer/295089690) | [OMER FARUK KIZILTUG](https://appshunter.io/developer/1870337585) |

## What reviewers say

### Autodesk Fusion

[App page](https://appshunter.io/ios/app/autodesk-fusion/id991074843)

Collaborate on 3D designs from anywhere with this mobile app. View, comment on, and share CAD models in over 100 formats. It works with a companion cloud-based desktop product for product design and development.

**Highlights:** View over 100 file formats, Collaborate on 3D designs, Comment on project activities, Share designs with stakeholders, Search and highlight parts, Offline data access

**In-app purchases:** none

**What reviewers like**

- 🚀 Great for showing designs
- 👍 Easy to use and understand
- 💡 Powerful CAD/CAM capabilities
- 🚀 Convenient for collaboration

**What reviewers complain about**

- 🐛 Crashes and login issues
- 👎 Limited functionality compared to desktop version
- 👎 Constantly logs out
- 🐛 Buggy and unreliable

**Reported bugs**

- Fails to open files
- White screens and rendering issues
- Inconsistent behavior across devices
- Frequent crashes on latest iOS versions

**Requested features**

- Full editing capabilities on iPad
- Ability to hide/show components
- Improved rendering and visualization
- Offline access and file management


### 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 Autodesk Fusion free?

Autodesk Fusion is free to download, with no in-app purchases.

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

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

### Which has better reviews, Autodesk Fusion or STL Viewer · Model File Reader?

STL Viewer · Model File Reader is rated higher. Autodesk Fusion averages 4.5 out of 5 from 4.1K ratings, while STL Viewer · Model File Reader averages 5.0 from 2 ratings.

### Do Autodesk Fusion or STL Viewer · Model File Reader have ads?

STL Viewer · Model File Reader shows ads; Autodesk Fusion does not.

### Which is updated more often, Autodesk Fusion or STL Viewer · Model File Reader?

Autodesk Fusion ships an update monthly, and STL Viewer · Model File Reader every 2 weeks. Most recently, Autodesk Fusion was updated on October 31, 2026 and STL Viewer · Model File Reader on October 28, 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.*