# PDF Document Scanner vs HMI Editor

The clearest difference is review sentiment: HMI Editor at 75% against PDF Document Scanner's 0%. HMI Editor also leads on ads (none vs shown) and update cadence (every 2 months vs every 112 months). PDF Document Scanner's advantage is in-app purchases (none vs 3). On price, device support and iOS requirement there is nothing between them.

Both are free to download. HMI Editor sells 3 one-off in-app purchases. PDF Document Scanner asks for nothing beyond the download.

PDF Document Scanner ships an update every 112 months, HMI Editor every 2 months. The most recent releases landed on June 4, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | PDF Document Scanner | HMI Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (10 ratings)](https://appshunter.io/ios/app/hmi-editor/id1261910661/reviews)** |
| Number of ratings | — | **10** |
| Positive reviews | 0.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 112 months | **Every 2 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 19 MB | 23 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ramalingam Sivaramakrishnan](https://appshunter.io/developer/892706271) | [Greg Maendel](https://appshunter.io/developer/507756979) |

## What reviewers say

### PDF Document Scanner

[App page](https://appshunter.io/ios/app/pdf-document-scanner-live/id1080216395)

Transform your device into a portable scanner to digitize multi-page documents, receipts, and more. Automatically detects borders, corrects distortion, and enhances image quality for perfect scans. Share your digitized documents easily via email or print.

**Highlights:** Digitize multi-page documents, Scan various items like receipts and business cards, Automatic border detection and cropping, Image quality enhancement, Import from gallery or scan directly, Share via email or print

**Features:** macOS Compatibility

**In-app purchases:** none


### HMI Editor

[App page](https://appshunter.io/ios/app/hmi-editor/id1261910661)

Create custom interfaces for real-time industrial process monitoring and control on iOS devices. Design dynamic dashboards with various elements and connect them to PLC systems. Develop and test projects freely, with payment only for deployment.

**Highlights:** Customizable page layouts, Real-time monitoring and control, Support for major PLC brands, On-screen project editing, Export/import asset files, Cloud storage and deployment

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Activation for One Use | $199.99 | one-time |
| Activation for Five Uses | $599.99 | one-time |
| Activation for Ten Uses | $999.99 | one-time |


## Frequently asked questions

### Is PDF Document Scanner free?

PDF Document Scanner is free to download, with no in-app purchases.

### Is HMI Editor free?

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

### Do PDF Document Scanner or HMI Editor have ads?

PDF Document Scanner shows ads; HMI Editor does not.

### Which is updated more often, PDF Document Scanner or HMI Editor?

PDF Document Scanner ships an update every 112 months, and HMI Editor every 2 months. Most recently, PDF Document Scanner was updated on June 4, 2026 and HMI Editor on September 14, 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.*