# 蓄積読書 vs いつどこ本棚

The clearest difference is in-app purchases: いつどこ本棚 at none against 蓄積読書's 7. いつどこ本棚 also leads on iOS requirement (17.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. 蓄積読書 sells 7 in-app purchases, starting at $2.99 per month. いつどこ本棚 asks for nothing beyond the download.

## The numbers

| Metric | 蓄積読書 | いつどこ本棚 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 9 MB |
| Requires iOS | 26.0 | **17.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Yamagishi](https://appshunter.io/developer/1516430576) | [shota yoshida](https://appshunter.io/developer/1593575738) |

## What reviewers say

### 蓄積読書

[App page](https://appshunter.io/ios/app/id1673784747)

This app helps adults build a reading habit by tracking progress, estimating completion times, and offering features to maintain reading streaks. It supports all book formats and allows for note-taking to capture insights.

**Highlights:** Real-time estimated reading completion time, Supports paper, e-books, and audiobooks, Streak maintenance with freeze items, Live Activity for lock screen progress, Note-taking for reading insights, Keyword search and barcode scanning for book registration

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 蓄積読書Plus＋ 月額プラン | $2.99 | per month |
| 蓄積読書Plus＋ 年額プラン | $22.99 | per year |
| 連続フリーズ | $0.29 | one-time |
| 連続フリーズ 2個 | $0.49 | one-time |
| 連続フリーズ 4個 | $0.99 | one-time |
| 連続フリーズ 3個 | $0.99 | one-time |
| 連続フリーズ 5個 | $1.99 | one-time |


### いつどこ本棚

[App page](https://appshunter.io/ios/app/id6745746972)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 蓄積読書 free?

蓄積読書 is free to download, with in-app purchases available.

### Is いつどこ本棚 free?

いつどこ本棚 is free to download, with no in-app purchases.

### Do 蓄積読書 or いつどこ本棚 have ads?

Neither 蓄積読書 nor いつどこ本棚 shows ads.

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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.*