# PDF Reader Pro vs OBJ & MTL Simple Viewer

The clearest difference is review sentiment: PDF Reader Pro at 100% against OBJ & MTL Simple Viewer's 13%. PDF Reader Pro also leads on rating (3.6 vs 2.7) and in-app purchases (none vs 2). OBJ & MTL Simple Viewer's advantage is iOS requirement (11.0 vs 13.0). On price, ratings volume, ads and device support there is nothing between them.

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

PDF Reader Pro holds the better App Store score, 3.6 against 2.7. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 100% of PDF Reader Pro's written reviews are positive against 13% of OBJ & MTL Simple Viewer's.

## The numbers

| Metric | PDF Reader Pro | OBJ & MTL Simple Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (8 ratings)](https://appshunter.io/ios/app/pdf-reader-pro-3d-edition/id1598489368/reviews)** | [2.7 (3 ratings)](https://appshunter.io/ios/app/obj-and-mtl-simple-viewer/id6469348754/reviews) |
| Number of ratings | **8** | 3 |
| Positive reviews | **100.0% of reviews** | 12.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 8 MB | 13 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nirav Parmar](https://appshunter.io/developer/1596410760) | [Victor Bovio](https://appshunter.io/developer/327627515) |

## What reviewers say

### PDF Reader Pro

[App page](https://appshunter.io/ios/app/pdf-reader-pro-3d-edition/id1598489368)

Experience PDFs in an extraordinary 3D view with this pro PDF reader. It offers a unique 3D book-like reading experience with light and dark modes, and supports both portrait and landscape orientations. Easily share your documents with other applications.

**Highlights:** 3D PDF reading experience, Light and Dark Mode support, Portrait and Landscape orientation, Open Source, Share PDFs to other apps

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is PDF Reader Pro free?

PDF Reader Pro is free to download, with no in-app purchases.

### Is OBJ & MTL Simple Viewer free?

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

### Which has better reviews, PDF Reader Pro or OBJ & MTL Simple Viewer?

PDF Reader Pro is rated higher. PDF Reader Pro averages 3.6 out of 5 from 8 ratings, while OBJ & MTL Simple Viewer averages 2.7 from 3 ratings.

### Do PDF Reader Pro or OBJ & MTL Simple Viewer have ads?

Both PDF Reader Pro and OBJ & MTL Simple Viewer show ads.

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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.*