# Hole Pattern Programming App vs DWG, STL & 3D CAD File Viewer

The clearest difference is in-app purchases: Hole Pattern Programming App at none against DWG, STL & 3D CAD File Viewer's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DWG, STL & 3D CAD File Viewer sells 1 one-off in-app purchase. Hole Pattern Programming App asks for nothing beyond the download.

Hole Pattern Programming App ships an update every 6 days, DWG, STL & 3D CAD File Viewer every 4 days. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Hole Pattern Programming App | DWG, STL & 3D CAD File Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dwg-stl-and-3d-cad-file-viewer/id6793832526/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 18 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 9+ | 4+ |
| Developer | [Shekhar Aggarwal](https://appshunter.io/developer/1856886128) | [EUTOPIX LABS](https://appshunter.io/developer/1896294696) |

## What reviewers say

### Hole Pattern Programming App

[App page](https://appshunter.io/ios/app/hole-pattern-programming-app/id6758404032)

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

**In-app purchases:** none


### DWG, STL & 3D CAD File Viewer

[App page](https://appshunter.io/ios/app/dwg-stl-and-3d-cad-file-viewer/id6793832526)

View and inspect various CAD file formats, including DWG, DXF, and 3D models, directly on your iPhone, iPad, or Mac. Offers private, local processing without uploads or ads, with AR capabilities and PDF report generation for Pro users.

**Highlights:** Open and inspect DWG, DXF, and 3D CAD files, Local file processing for privacy, Orbit, pan, and zoom 3D scenes, AR model placement on supported devices, Generate local PDF inspection reports, Supports STEP, IGES, STL, and OBJ formats

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CadRoam Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Hole Pattern Programming App free?

Hole Pattern Programming App is free to download, with no in-app purchases.

### Is DWG, STL & 3D CAD File Viewer free?

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

### Do Hole Pattern Programming App or DWG, STL & 3D CAD File Viewer have ads?

Neither Hole Pattern Programming App nor DWG, STL & 3D CAD File Viewer shows ads.

### Which is updated more often, Hole Pattern Programming App or DWG, STL & 3D CAD File Viewer?

Hole Pattern Programming App ships an update every 6 days, and DWG, STL & 3D CAD File Viewer every 4 days. Most recently, Hole Pattern Programming App was updated on October 19, 2026 and DWG, STL & 3D CAD File Viewer on October 15, 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.*