# N4 読解問題集 vs BookDrawer

The clearest difference is price: BookDrawer at Free against N4 読解問題集's $9.99. BookDrawer also leads on update cadence (every 3 days vs every 21 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BookDrawer is free to download; N4 読解問題集 costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

N4 読解問題集 ships an update every 21 months, BookDrawer every 3 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | N4 読解問題集 | BookDrawer |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 days** |
| Size | 2 MB | 11 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yamase & Touwa Japanese Insititute](https://appshunter.io/developer/442115304) | [Shinhyoung Lee](https://appshunter.io/developer/6796912754) |

## What reviewers say

### N4 読解問題集

[App page](https://appshunter.io/ios/app/n4/id654088367)

**Features:** Vision Pro support

**In-app purchases:** none


### BookDrawer

[App page](https://appshunter.io/ios/app/bookdrawer-reading-journal/id6796912751)

**In-app purchases:** none


## Frequently asked questions

### Is N4 読解問題集 free?

N4 読解問題集 costs $9.99, with no in-app purchases.

### Is BookDrawer free?

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

### Do N4 読解問題集 or BookDrawer have ads?

Neither N4 読解問題集 nor BookDrawer shows ads.

### Which is updated more often, N4 読解問題集 or BookDrawer?

N4 読解問題集 ships an update every 21 months, and BookDrawer every 3 days. Most recently, N4 読解問題集 was updated on October 29, 2026 and BookDrawer on October 29, 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.*