# 攻略アプリ〜逆転の書〜 for 逆転オセロニア vs クイズforブラッククローバー

The clearest difference is update cadence: 攻略アプリ〜逆転の書〜 for 逆転オセロニア at every 3 months against クイズforブラッククローバー's every 14 months. クイズforブラッククローバー's advantage is iOS requirement (11.0 vs 17.0). On price, ads, 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.

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, クイズforブラッククローバー every 14 months. The most recent releases landed on June 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 攻略アプリ〜逆転の書〜 for 逆転オセロニア | クイズforブラッククローバー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 58.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 14 months |
| Monetization | Free | — |
| Size | 25 MB | 23 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [SKILL-POOL Inc.](https://appshunter.io/developer/1781587540) | [kai sato](https://appshunter.io/developer/1142573287) |

## 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


### クイズforブラッククローバー

[App page](https://appshunter.io/ios/app/for/id1489813472)

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 クイズforブラッククローバー free?

クイズforブラッククローバー is free to download, with no in-app purchases.

### Do 攻略アプリ〜逆転の書〜 for 逆転オセロニア or クイズforブラッククローバー have ads?

Neither 攻略アプリ〜逆転の書〜 for 逆転オセロニア nor クイズforブラッククローバー shows ads.

### Which is updated more often, 攻略アプリ〜逆転の書〜 for 逆転オセロニア or クイズforブラッククローバー?

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, and クイズforブラッククローバー every 14 months. Most recently, 攻略アプリ〜逆転の書〜 for 逆転オセロニア was updated on June 10, 2026 and クイズforブラッククローバー on September 21, 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.*