# Scanner Pro OCR vs Mark To Do

The clearest difference is price: Mark To Do at Free against Scanner Pro OCR's $1.99. Mark To Do also leads on update cadence (every 2 months vs every 21 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Mark To Do is free to download; Scanner Pro OCR costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scanner Pro OCR ships an update every 21 months, Mark To Do every 2 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Scanner Pro OCR | Mark To Do |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Size | 3 MB | 2 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Lucioni Charalla](https://appshunter.io/developer/1198674844) | [hyojin bae](https://appshunter.io/developer/1893353821) |

## What reviewers say

### Scanner Pro OCR

[App page](https://appshunter.io/ios/app/scanner-pro-ocr/id6467523293)

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

**In-app purchases:** none


### Mark To Do

[App page](https://appshunter.io/ios/app/mark-to-do/id6762204004)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scanner Pro OCR free?

Scanner Pro OCR costs $1.99, with no in-app purchases.

### Is Mark To Do free?

Mark To Do is free to download, with no in-app purchases.

### Do Scanner Pro OCR or Mark To Do have ads?

Neither Scanner Pro OCR nor Mark To Do shows ads.

### Which is updated more often, Scanner Pro OCR or Mark To Do?

Scanner Pro OCR ships an update every 21 months, and Mark To Do every 2 months. Most recently, Scanner Pro OCR was updated on October 16, 2026 and Mark To Do on October 10, 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.*