# Black & White Go vs Otus Game

The clearest difference is review sentiment: Otus Game at 67% against Black & White Go's 0%. Otus Game also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Black & White Go ships an update every 2 months, Otus Game every 2 weeks. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Black & White Go | Otus Game |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 174 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TB SOFT(SK)](https://appshunter.io/developer/495095043) | [EDENLUX Corp.](https://appshunter.io/developer/1443712682) |

## What reviewers say

### Black & White Go

[App page](https://appshunter.io/ios/app/black-and-white-go/id1663126016)

This premium board game offers an offline Go experience powered by a local AI engine. Analyze games, review moves, and play against AI or friends. It's suitable for all skill levels, from beginners to masters.

**Highlights:** Offline AI engine (KataGo), Player vs AI mode, Player vs Player mode, AI vs AI mode, Position analysis, Replay mode

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

**In-app purchases:** none


### Otus Game

[App page](https://appshunter.io/ios/app/otus-game/id6476952932)

Engage in a variety of games designed to improve eye health and vision. Requires membership and eye score measurement through a companion app to begin playing.

**Highlights:** Eye exercise games, Vision improvement focus, Requires Otus Plus membership, Eye score measurement integration, Suitable for tired eyes

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

**In-app purchases:** none


## Frequently asked questions

### Is Black & White Go free?

Black & White Go is free to download, with no in-app purchases.

### Is Otus Game free?

Otus Game is free to download, with no in-app purchases.

### Do Black & White Go or Otus Game have ads?

Neither Black & White Go nor Otus Game shows ads.

### Which is updated more often, Black & White Go or Otus Game?

Black & White Go ships an update every 2 months, and Otus Game every 2 weeks. Most recently, Black & White Go was updated on October 10, 2026 and Otus Game on October 3, 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.*