# Clerk vs Book Memo

The clearest difference is in-app purchases: Clerk at none against Book Memo's 1. Clerk also leads on iOS requirement (11.0 vs 17.0). On price there is nothing between them.

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

## The numbers

| Metric | Clerk | Book Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 2 days |
| Size | 75 MB | 5 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | — | **iPhone** |
| Age rating | 17+ | 4+ |
| Developer | [Tomofumi Ueba](https://appshunter.io/developer/1636195782) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## What reviewers say

### Clerk

[App page](https://appshunter.io/ios/app/clerk/id1636195780)

**In-app purchases:** none


### Book Memo

[App page](https://appshunter.io/ios/app/book-memo-reading-log/id6793607401)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Clerk free?

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

### Is Book Memo free?

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

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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.*