# CrazyStone DeepLearning vs KifuBox

The clearest difference is ads: KifuBox at none against CrazyStone DeepLearning's shown. KifuBox also leads on review sentiment (100% vs 71%) and rating (5.0 vs 4.7). CrazyStone DeepLearning's advantage is ratings volume (1K vs 7). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. CrazyStone DeepLearning sells 1 in-app purchase, starting at $2.99 per month and KifuBox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

KifuBox holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CrazyStone DeepLearning has 1K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 71% of CrazyStone DeepLearning's written reviews are positive against 100% of KifuBox's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CrazyStone DeepLearning | KifuBox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1K ratings)](https://appshunter.io/ios/app/crazystone-deeplearning/id1252539379/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/kifubox/id1434692901/reviews)** |
| Number of ratings | **1K** | 7 |
| Positive reviews | 71.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 165 MB | 40 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UNBALANCE Corporation](https://appshunter.io/developer/358617691) | [Atsushi Tanaka](https://appshunter.io/developer/1434692900) |

## What reviewers say

### CrazyStone DeepLearning

[App page](https://appshunter.io/ios/app/crazystone-deeplearning/id1252539379)

Play the game of Go against a powerful AI or other players worldwide. Test your skills with certification exams and track your progress in rating mode. Offers various board sizes and difficulty levels for all players.

**Highlights:** Online Go games against global players, IAGA Rating Certification Tests, 17 levels of play from 15k to 2d, Export/import SGF game files, Rating Mode with game history, Human vs Computer and Human vs Human modes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CrazyStone DL Subscription | $2.99 | per month |

**What reviewers like**

- 👍 Great for learning Go
- 🎮 Enjoyable gameplay
- 💪 Strong AI opponent
- 🎨 Good visual design

**What reviewers complain about**

- 🙄 Excessive ads
- ⏱️ Extremely long ads
- 🤖 AI difficulty too high for beginners
- 🔒 Inability to close ads

**Reported bugs**

- Issues with input method and stone placement
- Sound not working
- Saved game state causing issues with ads

**Requested features**

- More advanced levels
- Ability to replay and explore game variations
- Option to slow down AI response
- Landscape mode support
- Analysis mode for premium users


### KifuBox

[App page](https://appshunter.io/ios/app/kifubox/id1434692901)

Manage and review your reversi game transcripts with this specialized app. Input games from various sources, add comments, and analyze your play with detailed statistics and opening management tools. Organize your games into folders and share screenshots for social media.

**Highlights:** Input and edit reversi game transcripts, Import from various sources (apps, camera, clipboard, CSV), Analyze games with scores, graphs, and statistics, Manage openings with memorization tests, Organize transcripts with folders and search, Share game screenshots

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited edition | $2.99 | one-time |


## Frequently asked questions

### Is CrazyStone DeepLearning free?

CrazyStone DeepLearning is free to download, with in-app purchases available.

### Is KifuBox free?

KifuBox is free to download, with in-app purchases available.

### Which has better reviews, CrazyStone DeepLearning or KifuBox?

KifuBox is rated higher. CrazyStone DeepLearning averages 4.7 out of 5 from 1K ratings, while KifuBox averages 5.0 from 7 ratings.

### Do CrazyStone DeepLearning or KifuBox have ads?

CrazyStone DeepLearning shows ads; KifuBox does not.

### Which is updated more often, CrazyStone DeepLearning or KifuBox?

CrazyStone DeepLearning ships an update every 2 months, and KifuBox every 2 months. Most recently, CrazyStone DeepLearning was updated on October 17, 2026 and KifuBox on October 8, 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.*