# Genius PDF & Document Scanner vs Mars Express KH

The clearest difference is in-app purchases: Mars Express KH at none against Genius PDF & Document Scanner's 4. Mars Express KH also leads on iOS requirement (12.0 vs 14.0). Genius PDF & Document Scanner's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Genius PDF & Document Scanner sells 4 in-app purchases, starting at $2.99 per month. Mars Express KH asks for nothing beyond the download.

Genius PDF & Document Scanner ships an update every 3 weeks, Mars Express KH every 2 months. The most recent releases landed on September 29, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Genius PDF & Document Scanner | Mars Express KH |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/genius-pdf-and-document-scanner/id1478550841/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 36 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Abdulla Yasin](https://appshunter.io/developer/1407887788) | [Ry Sokkheng](https://appshunter.io/developer/1628036349) |

## What reviewers say

### Genius PDF & Document Scanner

[App page](https://appshunter.io/ios/app/genius-pdf-and-document-scanner/id1478550841)

Easily scan, edit, and secure documents and photos with this free, ad-free application. It offers a user-friendly interface for quick document management, PDF creation, and editing tools, all accessible from your mobile device.

**Highlights:** Multiple document scanning, Secure documents with Face ID/password, Multipage editing and OCR, Convert multiple documents to PDF, Built-in document and photo editor, Business card scanning

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scanner for PDF & Documents | $2.99 | per month |
| Three Month | $4.99 | per 3 months |
| Scanner Pro: Scan Documents | $17.99 | per year |
| Scanner Lifetime, one time Buy | $24.99 | one-time |


### Mars Express KH

[App page](https://appshunter.io/ios/app/mars-express-kh/id1628036347)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Genius PDF & Document Scanner free?

Genius PDF & Document Scanner is free to download, with in-app purchases available.

### Is Mars Express KH free?

Mars Express KH is free to download, with no in-app purchases.

### Do Genius PDF & Document Scanner or Mars Express KH have ads?

Neither Genius PDF & Document Scanner nor Mars Express KH shows ads.

### Which is updated more often, Genius PDF & Document Scanner or Mars Express KH?

Genius PDF & Document Scanner ships an update every 3 weeks, and Mars Express KH every 2 months. Most recently, Genius PDF & Document Scanner was updated on September 29, 2026 and Mars Express KH on October 11, 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.*