# Book vs KUAF Mutolaa

The clearest difference is ads: Book at none against KUAF Mutolaa's shown. Book also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Book ships an update every 6 weeks, KUAF Mutolaa every 2 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Book | KUAF Mutolaa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 70 MB | 46 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [MICHELE DUMITRESCU](https://appshunter.io/developer/1748121600) | [Javlonbek Tuychiev](https://appshunter.io/developer/1886638768) |

## What reviewers say

### Book

[App page](https://appshunter.io/ios/app/book-reading-tracker/id6503151562)

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

**In-app purchases:** none


### KUAF Mutolaa

[App page](https://appshunter.io/ios/app/kuaf-mutolaa/id6761646941)

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

**In-app purchases:** none


## Frequently asked questions

### Is Book free?

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

### Is KUAF Mutolaa free?

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

### Do Book or KUAF Mutolaa have ads?

KUAF Mutolaa shows ads; Book does not.

### Which is updated more often, Book or KUAF Mutolaa?

Book ships an update every 6 weeks, and KUAF Mutolaa every 2 months. Most recently, Book was updated on November 4, 2026 and KUAF Mutolaa on October 31, 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.*