# 攻略アプリ〜逆転の書〜 for 逆転オセロニア vs DL Play Box

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 DL Play Box's 2. 攻略アプリ〜逆転の書〜 for 逆転オセロニア also leads on review sentiment (58% vs 35%) and device support (3 vs 1). DL Play Box's advantage is update cadence (monthly vs every 3 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. DL Play Box sells 2 one-off in-app purchases. 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, DL Play Box monthly. The most recent releases landed on June 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 攻略アプリ〜逆転の書〜 for 逆転オセロニア | DL Play Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (9 ratings)](https://appshunter.io/ios/app/dl-play-box/id6449668745/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | **58.0% of reviews** | 35.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 23 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [SKILL-POOL Inc.](https://appshunter.io/developer/1781587540) | [EISYS,inc.](https://appshunter.io/developer/462056434) |

## 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


### DL Play Box

[App page](https://appshunter.io/ios/app/dl-play-box/id6449668745)

Access and play doujin games on your iOS device. Enjoy your favorite titles on the go, with purchased content automatically synced for immediate play.

**Highlights:** Play doujin games on iOS, Enjoy on the go, Automatic content sync, Access purchased titles

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RiSE -囚われ少女の魔法譚- | Free | one-time |
| GIRAL | $0.99 | one-time |


## 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 DL Play Box free?

DL Play Box 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 DL Play Box have ads?

Neither 攻略アプリ〜逆転の書〜 for 逆転オセロニア nor DL Play Box 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 DL Play Box?

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, and DL Play Box monthly. 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 DL Play Box on September 22, 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.*