# 攻略アプリ〜逆転の書〜 for 逆転オセロニア vs VS SV

The clearest difference is update cadence: VS SV at every 6 days against 攻略アプリ〜逆転の書〜 for 逆転オセロニア's every 3 months. VS SV also leads on review sentiment (84% vs 58%) and iOS requirement (15.0 vs 17.0). 攻略アプリ〜逆転の書〜 for 逆転オセロニア's advantage is monetization model (free vs ad-supported). 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, VS SV every 6 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 攻略アプリ〜逆転の書〜 for 逆転オセロニア | VS SV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (11 ratings)](https://appshunter.io/ios/app/vs-sv/id1300184222/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | 58.0% of reviews | **83.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 40 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SKILL-POOL Inc.](https://appshunter.io/developer/1781587540) | [Ryuji Yamauchi](https://appshunter.io/developer/938685990) |

## 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


### VS SV

[App page](https://appshunter.io/ios/app/vs-sv/id1300184222)

Calculate damage for up to four Pokémon simultaneously in battles. Register your own Pokémon and teams for quick calculations, and store extensive battle records. Pre-loaded common Pokémon data is automatically updated.

**Highlights:** Simultaneous 4-Pokémon damage calculation, Register custom Pokémon and teams, Store up to 1000 battle records, Pre-loaded, auto-updating Pokémon data, Damage calculation using initial and user data

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

**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 VS SV free?

VS SV 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 VS SV have ads?

Neither 攻略アプリ〜逆転の書〜 for 逆転オセロニア nor VS SV 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 VS SV?

攻略アプリ〜逆転の書〜 for 逆転オセロニア ships an update every 3 months, and VS SV every 6 days. 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 VS SV on October 13, 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.*