# 読書管理CatBook vs ITパスポート戦記：SYNAPSEの暴走

The clearest difference is ads: ITパスポート戦記：SYNAPSEの暴走 at none against 読書管理CatBook's shown. 読書管理CatBook's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. Both last shipped on October 7, 2026.

## The numbers

| Metric | 読書管理CatBook | ITパスポート戦記：SYNAPSEの暴走 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Monetization | Ad-supported | — |
| Size | 82 MB | 128 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [BECODE, K.K.](https://appshunter.io/developer/1689968937) |

## 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


### ITパスポート戦記：SYNAPSEの暴走

[App page](https://appshunter.io/ios/app/itsynapse/id6804380334)

**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 ITパスポート戦記：SYNAPSEの暴走 free?

ITパスポート戦記：SYNAPSEの暴走 is free to download, with no in-app purchases.

### Do 読書管理CatBook or ITパスポート戦記：SYNAPSEの暴走 have ads?

読書管理CatBook shows ads; ITパスポート戦記：SYNAPSEの暴走 does not.

### Which is updated more often, 読書管理CatBook or ITパスポート戦記：SYNAPSEの暴走?

読書管理CatBook ships an update monthly, and ITパスポート戦記：SYNAPSEの暴走 monthly. Most recently, 読書管理CatBook was updated on October 7, 2026 and ITパスポート戦記：SYNAPSEの暴走 on October 7, 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.*