# OBJ & MTL Simple Viewer vs STEP Viewer

The clearest difference is in-app purchases: STEP Viewer at none against OBJ & MTL Simple Viewer's 2. STEP Viewer also leads on ads (none vs shown). OBJ & MTL Simple Viewer's advantage is iOS requirement (11.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. OBJ & MTL Simple Viewer sells 2 one-off in-app purchases. STEP Viewer asks for nothing beyond the download.

## The numbers

| Metric | OBJ & MTL Simple Viewer | STEP Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/obj-and-mtl-simple-viewer/id6469348754/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 12.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | — | Every 5 days |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 61 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Victor Bovio](https://appshunter.io/developer/327627515) | [Smart Cube Labs Co., Ltd.](https://appshunter.io/developer/1456342688) |

## What reviewers say

### OBJ & MTL Simple Viewer

[App page](https://appshunter.io/ios/app/obj-and-mtl-simple-viewer/id6469348754)

Easily view and export 3D OBJ files with this application. It supports OBJ, MTL, and texture files, and allows for intuitive manipulation like rotating, panning, and zooming. Gain insights into your models with detailed information and customize rendering options for a better viewing experience.

**Highlights:** Load OBJ, MTL, and texture files, Load from ZIP files, Rotate, pan, and zoom 3D models, Orthogonal and perspective viewing modes, View model info (mesh, material, texture count), Customizable rendering options (faces, edges, points), Clipping plane for interior viewing

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Export to STL, DXF | $1.99 | one-time |


### STEP Viewer

[App page](https://appshunter.io/ios/app/step-viewer/id6756539299)

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

**In-app purchases:** none


## Frequently asked questions

### Is OBJ & MTL Simple Viewer free?

OBJ & MTL Simple Viewer is free to download, with in-app purchases available.

### Is STEP Viewer free?

STEP Viewer is free to download, with no in-app purchases.

### Do OBJ & MTL Simple Viewer or STEP Viewer have ads?

OBJ & MTL Simple Viewer shows ads; STEP Viewer 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.*