# DIRX2 vs 3D File Viewer

The clearest difference is in-app purchases: DIRX2 at none against 3D File Viewer's 4. DIRX2 also leads on iOS requirement (13.0 vs 16.6). 3D File Viewer's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. 3D File Viewer sells 4 in-app purchases, starting at $3.99 per month. DIRX2 asks for nothing beyond the download.

DIRX2 ships an update every 3 months, 3D File Viewer every 3 weeks. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | DIRX2 | 3D File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (48 ratings)](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064/reviews)** |
| Number of ratings | — | **48** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 11 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tapwow, Llc](https://appshunter.io/developer/1475161787) | [Andeesh Mehdi Syed](https://appshunter.io/developer/1676226599) |

## What reviewers say

### DIRX2

[App page](https://appshunter.io/ios/app/dirx2/id1497933863)

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D File Viewer

[App page](https://appshunter.io/ios/app/3d-file-viewer-obj-stp-and-more/id6745021064)

Easily open and explore 3D model files on your iPhone or iPad. Supports over 20 popular formats, offering smooth viewing with intuitive touch controls. Ideal for designers, engineers, architects, and students working with 3D data.

**Highlights:** Supports over 20 3D file formats, Fast and smooth 3D file viewing, Zoom, rotate, and pan with touch controls, Open files from Files app or other apps, Lightweight and easy to use, No account required

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - Monthly | $3.99 | per month |
| Remove Ads - Annual | $29.99 | per year |
| Remove Ads - Lifetime | $29.99 | one-time |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is DIRX2 free?

DIRX2 is free to download, with no in-app purchases.

### Is 3D File Viewer free?

3D File Viewer is free to download, with in-app purchases available.

### Do DIRX2 or 3D File Viewer have ads?

Neither DIRX2 nor 3D File Viewer shows ads.

### Which is updated more often, DIRX2 or 3D File Viewer?

DIRX2 ships an update every 3 months, and 3D File Viewer every 3 weeks. Most recently, DIRX2 was updated on May 16, 2026 and 3D File Viewer on September 20, 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.*