# 読書管理CatBook vs 早口言葉

The clearest difference is update cadence: 早口言葉 at weekly against 読書管理CatBook's monthly. 読書管理CatBook's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

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

読書管理CatBook ships an update monthly, 早口言葉 weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 読書管理CatBook | 早口言葉 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 82 MB | 16 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [Kazuaki Uchimi](https://appshunter.io/developer/1782409895) |

## What reviewers say

### 読書管理CatBook

[App page](https://appshunter.io/ios/app/catbook/id1565953416)

Track your reading progress, including title, author, and reading status. Organize books by series or magazine issues and get reminders for library book returns. Easily add books via ISBN scan.

**Highlights:** Record title, author, volume, notes, and reading progress, Organize books by series or magazine issues, Library mode with return date reminders, ISBN search with camera scanning, Save data to CSV, Calendar view for reading records

**Features:** macOS Compatibility

**In-app purchases:** none


### 早口言葉

[App page](https://appshunter.io/ios/app/id6746455458)

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

**In-app purchases:** none


## Frequently asked questions

### Is 読書管理CatBook free?

読書管理CatBook is free to download, with no in-app purchases.

### Is 早口言葉 free?

早口言葉 is free to download, with no in-app purchases.

### Do 読書管理CatBook or 早口言葉 have ads?

Both 読書管理CatBook and 早口言葉 show ads.

### Which is updated more often, 読書管理CatBook or 早口言葉?

読書管理CatBook ships an update monthly, and 早口言葉 weekly. Most recently, 読書管理CatBook was updated on October 24, 2026 and 早口言葉 on October 28, 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.*