# STL Viewer vs View3D Pro

The clearest difference is price: STL Viewer at Free against View3D Pro's $0.99. View3D Pro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

STL Viewer is free to download; View3D Pro costs $0.99 up front. STL Viewer sells 2 in-app purchases, starting at $4.99 per month. View3D Pro asks for nothing beyond the download.

## The numbers

| Metric | STL Viewer | View3D Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Size | 46 MB | 41 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Y Mobile Solution Co. , Ltd.](https://appshunter.io/developer/1623748683) | [昂 熊](https://appshunter.io/developer/6809671197) |

## What reviewers say

### STL Viewer

[App page](https://appshunter.io/ios/app/stl-viewer-3d-mesh/id6782577359)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STL Viewer Premium Monthly | $4.99 | per month |
| STL Viewer Premium Yearly | $34.99 | per year |


### View3D Pro

[App page](https://appshunter.io/ios/app/view3d-pro/id6809789209)

**In-app purchases:** none


## Frequently asked questions

### Is STL Viewer free?

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

### Is View3D Pro free?

View3D Pro costs $0.99, with no in-app purchases.

### Do STL Viewer or View3D Pro have ads?

STL Viewer shows ads; View3D Pro does not.

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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.*