# Book Diary vs Book

The clearest difference is in-app purchases: Book at none against Book Diary's 1. On price and iOS requirement there is nothing between them.

Both are free to download. Book Diary sells 1 in-app purchase, starting at $3.99 per month. Book asks for nothing beyond the download.

## The numbers

| Metric | Book Diary | Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 days | — |
| Size | 2 MB | 1 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [VADZIM TSITKO](https://appshunter.io/developer/1713712145) | [Maren Bellamy](https://appshunter.io/developer/1887168890) |

## What reviewers say

### Book Diary

[App page](https://appshunter.io/ios/app/book-diary/id6757989246)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |


### Book

[App page](https://appshunter.io/ios/app/book-train-your-knowledge/id6760989511)

**In-app purchases:** none


## Frequently asked questions

### Is Book Diary free?

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

### Is Book free?

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

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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.*