# Knut Book Scanner vs Richdown

The clearest difference is in-app purchases: Richdown at none against Knut Book Scanner's 1. Richdown also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Knut Book Scanner sells 1 one-off in-app purchase. Richdown asks for nothing beyond the download.

## The numbers

| Metric | Knut Book Scanner | Richdown |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 3 MB | 7 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Jussi Rajaniemi](https://appshunter.io/developer/1759458881) | [Yo Suzuki](https://appshunter.io/developer/1866507310) |

## What reviewers say

### Knut Book Scanner

[App page](https://appshunter.io/ios/app/knut-book-scanner/id6760627620)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Richdown

[App page](https://appshunter.io/ios/app/richdown/id6776106561)

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

**In-app purchases:** none


## Frequently asked questions

### Is Knut Book Scanner free?

Knut Book Scanner is free to download, with in-app purchases available.

### Is Richdown free?

Richdown is free to download, with no in-app purchases.

### Do Knut Book Scanner or Richdown have ads?

Neither Knut Book Scanner nor Richdown shows ads.

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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.*