# RO! Viking Raid vs Book Sort

The clearest difference is in-app purchases: RO! Viking Raid at none against Book Sort's 1. RO! Viking Raid also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Book Sort sells 1 one-off in-app purchase. RO! Viking Raid asks for nothing beyond the download.

## The numbers

| Metric | RO! Viking Raid | Book Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (10 ratings)](https://appshunter.io/ios/app/book-sort-shelf-puzzle/id6801528356/reviews)** |
| Number of ratings | — | **10** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 days | — |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 178 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [NORIENT INNOVATION AND DEVELOPMENT AS](https://appshunter.io/developer/6789246911) | [Igor Chetrus](https://appshunter.io/developer/1562661724) |

## What reviewers say

### RO! Viking Raid

[App page](https://appshunter.io/ios/app/ro-viking-raid/id6789246909)

**Features:** macOS Compatibility

**In-app purchases:** none


### Book Sort

[App page](https://appshunter.io/ios/app/book-sort-shelf-puzzle/id6801528356)

Organize colorful books on a shelf by sorting them into their correct color groups. Strategically plan your moves to uncover hidden books and complete each level within a limited number of turns. Utilize helpful boosters like Undo and Joker to overcome challenges.

**Highlights:** Color-based book sorting, Hidden books and strategic moves, Limited moves per level, Crown book starting mechanic, Undo and Joker boosters, Increasingly challenging levels, Relaxing puzzle gameplay

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $9.99 | one-time |


## Frequently asked questions

### Is RO! Viking Raid free?

RO! Viking Raid is free to download, with no in-app purchases.

### Is Book Sort free?

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

### Do RO! Viking Raid or Book Sort have ads?

Book Sort shows ads; RO! Viking Raid does not.

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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.*