# 読書管理CatBook vs みあディク

The clearest difference is in-app purchases: 読書管理CatBook at none against みあディク's 6. 読書管理CatBook also leads on update cadence (monthly vs every 2 months) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. みあディク sells 6 one-off in-app purchases. 読書管理CatBook asks for nothing beyond the download.

読書管理CatBook ships an update monthly, みあディク every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 読書管理CatBook | みあディク |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 82 MB | 31 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sumie Watanabe](https://appshunter.io/developer/1349237972) | [MIAOU, KK](https://appshunter.io/developer/1547778886) |

## 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


### みあディク

[App page](https://appshunter.io/ios/app/id6760274419)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A2レベル解放 | $1.99 | one-time |
| C2レベル解放 | $1.99 | one-time |
| B1レベル解放 | $1.99 | one-time |
| B2レベル解放 | $1.99 | one-time |
| C1レベル解放 | $1.99 | one-time |
| 全レベル解放 | $6.99 | one-time |


## 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 みあディク free?

みあディク is free to download, with in-app purchases available.

### Do 読書管理CatBook or みあディク have ads?

Both 読書管理CatBook and みあディク show ads.

### Which is updated more often, 読書管理CatBook or みあディク?

読書管理CatBook ships an update monthly, and みあディク every 2 months. Most recently, 読書管理CatBook was updated on November 3, 2026 and みあディク on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*