# 読書管理CatBook vs BrainDojo

The clearest difference is in-app purchases: 読書管理CatBook at none against BrainDojo's 3. 読書管理CatBook also leads on iOS requirement (12.0 vs 15.0). BrainDojo's advantage is review sentiment (100% vs 75%) and update cadence (every 10 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. BrainDojo sells 3 in-app purchases, starting at $6.99 per month. 読書管理CatBook asks for nothing beyond the download.

読書管理CatBook ships an update monthly, BrainDojo every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 読書管理CatBook | BrainDojo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/braindojo-adhd-brain-training/id6739862455/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 82 MB | 274 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) | [StudyX G.K.](https://appshunter.io/developer/1451314118) |

## 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


### BrainDojo

[App page](https://appshunter.io/ios/app/braindojo-adhd-brain-training/id6739862455)

Engage in daily brain training activities like handwriting and reading aloud to boost focus and cognitive skills. Suitable for all ages, this app offers fun, effective exercises with new content added monthly.

**Highlights:** Handwriting exercises, Reading aloud practice, Calculation activities, Focus improvement, Memory enhancement, New content monthly

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainDojo Plus | $6.99 | per month |
| BrainDojo Plus | $39.99 | per year |
| Tip | $0.99 | 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 BrainDojo free?

BrainDojo is free to download, with in-app purchases available.

### Do 読書管理CatBook or BrainDojo have ads?

Both 読書管理CatBook and BrainDojo show ads.

### Which is updated more often, 読書管理CatBook or BrainDojo?

読書管理CatBook ships an update monthly, and BrainDojo every 10 days. Most recently, 読書管理CatBook was updated on October 24, 2026 and BrainDojo on October 25, 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.*