# 攻略アプリ〜逆転の書〜 for 逆転オセロニア vs カトホーム

The clearest difference is in-app purchases: 攻略アプリ〜逆転の書〜 for 逆転オセロニア at none against カトホーム's 2. 攻略アプリ〜逆転の書〜 for 逆転オセロニア also leads on ads (none vs shown). カトホーム's advantage is review sentiment (85% vs 58%). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. カトホーム sells 2 in-app purchases, starting at $1.99 per month. 攻略アプリ〜逆転の書〜 for 逆転オセロニア asks for nothing beyond the download.

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, カトホーム every 2 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 攻略アプリ〜逆転の書〜 for 逆転オセロニア | カトホーム |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/id1541453778/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 58.0% of reviews | **84.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 84 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SKILL-POOL Inc.](https://appshunter.io/developer/1781587540) | [JUNTA WATANABE](https://appshunter.io/developer/1493245156) |

## What reviewers say

### 攻略アプリ〜逆転の書〜 for 逆転オセロニア

[App page](https://appshunter.io/ios/app/for/id1149258978)

This app provides comprehensive data and tools for the popular game "Gyakuten Othello Nia". Features include character stats, a deck simulator, strategy guides, and a damage calculator to enhance gameplay.

**Highlights:** Character stats and skill information, Deck simulator for strategy planning, Othello strategy guides and practice board, Damage calculation tool, Past successful deck analysis, Icon maker for social media

**Features:** macOS Compatibility

**In-app purchases:** none


### カトホーム

[App page](https://appshunter.io/ios/app/id1541453778)

This app provides a dedicated viewing support experience for streams by a specific creator. It offers timeline and calendar views of broadcast information, tracks concurrent viewer counts and monthly stream durations, and sends notifications for new broadcasts.

**Highlights:** Stream timeline and calendar, Concurrent viewer count tracking, Monthly stream duration analysis, Broadcast start notifications, Creator-specific content focus

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアム(月額) | $1.99 | per month |
| プレミアム(年額) | $19.99 | per year |


## Frequently asked questions

### Is 攻略アプリ〜逆転の書〜 for 逆転オセロニア free?

攻略アプリ〜逆転の書〜 for 逆転オセロニア is free to download, with no in-app purchases.

### Is カトホーム free?

カトホーム is free to download, with in-app purchases available.

### Do 攻略アプリ〜逆転の書〜 for 逆転オセロニア or カトホーム have ads?

カトホーム shows ads; 攻略アプリ〜逆転の書〜 for 逆転オセロニア does not.

### Which is updated more often, 攻略アプリ〜逆転の書〜 for 逆転オセロニア or カトホーム?

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, and カトホーム every 2 months. Most recently, 攻略アプリ〜逆転の書〜 for 逆転オセロニア was updated on October 14, 2026 and カトホーム on October 24, 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.*