# CAD Viewer Editor vs STEP Reviewer Pro

The clearest difference is iOS requirement: CAD Viewer Editor at 15.0 against STEP Reviewer Pro's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. CAD Viewer Editor sells 2 in-app purchases, starting at $0.99 per month and STEP Reviewer Pro sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CAD Viewer Editor ships an update every 8 days, STEP Reviewer Pro every 10 days. The most recent releases landed on November 7, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | CAD Viewer Editor | STEP Reviewer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/cad-viewer-editor/id6768843929/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 112 MB | 43 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, Mac, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Hefei Yunyilian Intelligent Technology Co., Ltd](https://appshunter.io/developer/1541792997) | [Shanghai Fuwei Information Technology Co., Ltd.](https://appshunter.io/developer/6801400882) |

## What reviewers say

### CAD Viewer Editor

[App page](https://appshunter.io/ios/app/cad-viewer-editor/id6768843929)

This app allows users to view and edit DWG and DXF CAD files offline on Apple devices. It supports a wide range of AutoCAD-compatible drawing versions and offers robust 2D drafting tools. Users can also export drawings to PDF and PNG formats.

**Highlights:** View and edit DWG & DXF drawings, Offline functionality, 2D drafting and editing tools, Export to PDF and PNG, Privacy-focused design, Optimized for Apple devices

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CAD Viewer Editor Monthly | $0.99 | per month |
| CAD Viewer Editor Yearly | $24.99 | per year |


### STEP Reviewer Pro

[App page](https://appshunter.io/ios/app/step-reviewer-pro/id6791591460)

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| USDA Export | $6.99 | one-time |
| USDC Export | $6.99 | one-time |
| USDZ Export | $6.99 | one-time |
| Review Report Export | $14.99 | one-time |
| Screen Recording | $14.99 | one-time |
| STL Export | $19.99 | one-time |
| GLB Export | $19.99 | one-time |
| Parts Export | $24.99 | one-time |
| Exploded View | $24.99 | one-time |
| Unlimited Measurements | $24.99 | one-time |


## Frequently asked questions

### Is CAD Viewer Editor free?

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

### Is STEP Reviewer Pro free?

STEP Reviewer Pro is free to download, with in-app purchases available.

### Do CAD Viewer Editor or STEP Reviewer Pro have ads?

Neither CAD Viewer Editor nor STEP Reviewer Pro shows ads.

### Which is updated more often, CAD Viewer Editor or STEP Reviewer Pro?

CAD Viewer Editor ships an update every 8 days, and STEP Reviewer Pro every 10 days. Most recently, CAD Viewer Editor was updated on November 7, 2026 and STEP Reviewer Pro on November 2, 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.*