Comparison

CrazyStone DeepLearning vs 詰碁の森

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

CrazyStone DeepLearning

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
Read full description

The strongest, the best Go app in the world based on Crazy Stone employing Deep Learning technology ! *New Features* -We have introduced an online game feature. Enjoy online games against players all over the world ! -IAGA Rating Certification Tests Challenge the Dan/Kyu tests provided by the International AI Go Association. -Premium Membership Completely ad free, higher levels and additional features for Premium Members. Crazy Stone has made a huge step forward by combining Deep Neural Networks with Monte Carlo Tree Search. The highest level of Crazy Stone Deep Learning has achieved 5d in kgs rating and in this lite version, we have provided you the highest level of 2d for FREE! * 17 levels of play from 15k to 2d There are 17 levels of play (15k-2d) for all the board sizes. Crazy Stone has improved not only in strength, but also in his style of play and the lower levels are perfect for players who want to learn the game of Go. Now, the strongest level for Premium Members is 5d. * IAGA Rating Certification Test Challenge the Dan/Kyu tests provided by the International AI Go Association. You will be awarded certificate images if you pass the tests. (You will need to register an AI Game Account to challenge the tests. Registration is free)  * Export and import sgf game files You will be able to import and export game records in sgf format from other apps. Also you can copy game record data to the clipboard. * Rating Mode Test your skills with serious games against the AI, keeps track of the results of your games and the history of your rating! The Rating Mode will be partly unlocked if you reach 7k IAGA Rating. If you become a premium member, all of the Rating Mode features will be unlocked immediately. * Other features ・Friendly 3 input methods You can choose from 3 options of input methods (Zoom, Cursor & Touch). ・17 levels of play for each board size (9x9, 13x13, 19x19) ・Human vs Computer, Human vs Human (sharing a single device) ・Computer vs Computer Games ・Handicap games, variable options of Komi ・Hint (suggest) ・Instant Undo (available even when the computer is thinking) ・Automatic territory calculation ・Japanese/Chinese Rules ・Suspend/Re-start games ・Save/Load game record in sgf files ・Automatic and manual replay of a game record ・Highlight the last move ・COM resign feature ・Byoyomi games (You will not be able to select computer level in timed games) ・Atari warning ・Highlight the last move ・Play speed can be adjusted ■ Subscription Details The benefits of Premium Members are: -Completely ad free -Maximum AI playing strength will rise to 5dan -Play Rating Mode for all 3 board sizes -Challenge the IAGA Certification Tests higher than 7kyu About the subscription -Monthly Subscription for Premium Membership. -Customers will be charged a monthly fee to their iTunes Account. -The Subscription will be renewed automatically unless cancelled more than 24 hours before the end of it's current period. -Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. How to cancel the subscription -Form the app Touch the Manage Subscription button and then touch Cancel Subscription. -From your device Move to Settings > iTunes Store and App Store > Apple ID > Subscription -It is not possible to prorate usage fees, cancel or refund the subscription for the current period. -After cancelling the subscription, you will be able to play Engine Server Games until the current subscription period expires. Privacy Policy https://www.unbalance.co.jp/privacy/en/igominna/ Terms of Use https://www.unbalance.co.jp/eula/en/igominna/ * This app is certified by International AI Go Association

About

詰碁の森

This app offers a comprehensive Go (囲碁) learning experience for players of all levels, from beginners to professionals. It features adaptive AI opponents, difficulty settings, performance tracking, and interactive problem-solving with explanations. Enjoy customizable graphics and a unique review function to enhance your skills.

Highlights
  • Four difficulty levels: beginner to advanced
  • Automatic AI responses to your moves
  • Stage-based 3-star rating system
  • Automatic board zoom for problems
  • Solutions and explanations for each problem
  • Player performance tracking (win rate, titles)
  • Review function with count
Features
Read full description

対象棋力:初心者からプロまで ◆機能 - 難易度は入門、初級、中級、上級の4種類 - あなたの着手に自動応手 - ステージごとの3つ星評価 - 問題に合わせて盤面を自動ズーム - 1問ごとに見れる解答・解説(現在、解説は初級のみ対応) - 正解率や称号などのプレイヤー成績の管理 - 周回機能&周回数カウント - 碁盤と碁石のグラフィック設定の切り替え ◆こんな人におすすめ - 囲碁AI「アルファ碁」がきっかけで囲碁をやってみたくなった - 囲碁漫画を読んで囲碁に興味を持った - 棋譜は並べてるけど死活が苦手 - 将棋はできるけど囲碁もやってみたい - オセロ(リバーシ)に自信がある - 囲碁が好きでもっと強くなりたい - 囲碁のルールはなんとなく覚えたけど何からしていいのか分からない - 無料で囲碁を楽しみたい - 何か1つ趣味が欲しい ◆利用規約:https://igo-creative.net/TsumegonoMori/eula.html ◆プライバシーポリシー:https://igo-creative.net/TsumegonoMori/privacy_policy.html ◆お問い合わせ先:tsumegonomori15@gmail.com

Screenshots

CrazyStone DeepLearning4 screens
詰碁の森3 screens

Verdict

The call

The clearest difference is ratings volume: CrazyStone DeepLearning at 1K against 詰碁の森's 21. 詰碁の森's advantage is update cadence (every 3 weeks vs every 2 months) and review sentiment (82% vs 71%). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CrazyStone DeepLearning sells 1 in-app purchase, starting at $2.99 per month and 詰碁の森 sells 8 in-app purchases, starting at $4.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

詰碁の森 holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: CrazyStone DeepLearning has 1K ratings behind it against 21, 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 82% of 詰碁の森's.

UpkeepUpdate frequency

CrazyStone DeepLearning ships an update every 2 months, 詰碁の森 every 3 weeks. Both last shipped on October 29, 2026.

Scorecard4 real differences · 6 level
CrazyStone DeepLearning versus 詰碁の森: the parameters behind the verdict, then further details
ParameterCrazyStone DeepLearning詰碁の森
PriceFreeFree
Rating4.6 (1K ratings)4.8 (21 ratings) — better
Positive reviews71.2% of reviews81.8% of reviews — better
Number of ratings1K — better21
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size165 MB102 MB
Age rating4+4+
DeveloperUNBALANCE Corporationnaoki jinguji

Customer experience

CrazyStone DeepLearning

All ratings1,019 ratings
Positive92.3%
Neutral2.7%
Negative4.9%
Written reviews132 reviews
Positive71.2%
Neutral6.8%
Negative22.0%

詰碁の森

All ratings21 ratings
Positive90.5%
Neutral9.5%
Negative0.0%
Written reviews22 reviews
Positive81.8%
Neutral4.5%
Negative13.6%

Bugs and requests

CrazyStone DeepLearning

Reported bugs

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

Requested features

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

詰碁の森

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

CrazyStone DeepLearning

Subscriptions1
  • CrazyStone DL Subscription$2.991 Month
8 purchases

詰碁の森

Subscriptions1
  • プレミアムプラン$4.491 Month
One-time7
  • 詰碁追加パック 初級1$1.99
  • 詰碁追加パック 中級1$1.99
  • 詰碁追加パック 初級2$1.99
Show 4 more
  • 詰碁追加パック 中級2$1.99
  • 詰碁追加パック 中級3$1.99
  • 詰碁追加パック 中級4$1.99
  • ゴールドパス$12.99

Questions

Is CrazyStone DeepLearning free?
CrazyStone DeepLearning is free to download, with in-app purchases available.
Is 詰碁の森 free?
詰碁の森 is free to download, with in-app purchases available.
Which has better reviews, CrazyStone DeepLearning or 詰碁の森?
詰碁の森 is rated higher. CrazyStone DeepLearning averages 4.6 out of 5 from 1K ratings, while 詰碁の森 averages 4.8 from 21 ratings.
Do CrazyStone DeepLearning or 詰碁の森 have ads?
Both CrazyStone DeepLearning and 詰碁の森 show ads.
Which is updated more often, CrazyStone DeepLearning or 詰碁の森?
CrazyStone DeepLearning ships an update every 2 months, and 詰碁の森 every 3 weeks. Most recently, CrazyStone DeepLearning was updated on October 29, 2026 and 詰碁の森 on October 29, 2026.

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