# OneSolve Go — Offline KataGo · 20k to 9d+

> Offline Go training app with AI engine, problems, lessons, and game analysis. (iPhone/iPad app by Suzhou Vector16 Tech Ltd.)

- Source: https://appshunter.io/ios/app/onesolve-go/id6798178345 (this page in markdown: same URL + `.md`)
- Developer: [Suzhou Vector16 Tech Ltd](https://appshunter.io/developer/1896112927)
- Category: Education, Entertainment
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 11 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Thai, Chinese (Traditional, Taiwan)
- Released: 2026-08-20
- Data updated: 2026-10-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/onesolve-go/id6798178345/reviews.md

## What is OneSolve Go?

OneSolve Go is a fully offline Go app. The KataGo engine runs directly on your iPhone or iPad — no network, no game records uploaded, and you can start a game with the connection off.

FROM 20 KYU TO 9 DAN+
· The kyu levels are not a weakened engine. They use a network trained on human games — it misses things, gets greedy and plays a loose endgame, like a person rather than a machine playing badly on purpose
· The dan levels are set by KataGo's search depth, one rung at a time
· 9x9, 13x13 and 19x19, with handicap

13,934 LIFE-AND-DEATH PROBLEMS
Life and death, capture, tesuji and endgame, graded by type and five difficulty levels, all solvable offline.

33 BEGINNER LESSONS
Ordered after the British Go Association's teaching guide: capturing first, boards up to 9x9 to begin with, ko last. The graduation test is beating KataGo on 9x9 with a 4-stone handicap.

REVIEW AND RANK ASSESSMENT
Let KataGo analyse a finished game move by move: it draws the win-rate curve and picks out the moves that cost you most. The rank assessment estimates your strength from move quality, not from the result.

TUNED FOR APPLE SILICON
· Prefers the Neural Engine — same strength, less battery
· Low power / normal / full speed, with automatic downgrade when the device heats up
· SGF import and export; games sync across your devices through iCloud

PRIVACY
No account or sign-in, and your games are never uploaded — play and analysis run entirely on your device.
To keep tuning performance across devices, the app reports runtime data while an AI model is running: device model, OS version, memory and CPU use, thermal state and battery level. No game records, no account, nothing that identifies you personally.

— Membership & Subscription —
· Yearly Membership: auto-renewable subscription, 1 year; price shown in-app for your storefront (CNY 38/year in China). Cancel anytime in your App Store account settings.
· Lifetime Membership: one-time purchase, not a subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://tommyeth.github.io/yijie-weiqi/privacy.html

## Key features

- Offline KataGo engine
- Life-and-death problems
- Beginner lessons
- Game analysis and rank assessment
- Optimized for Apple Silicon
- iCloud game syncing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Member | $4.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Member | $7.99 | one-time |



## Frequently asked questions about OneSolve Go

### What is OneSolve Go?

OneSolve Go is a fully offline application designed to help users improve their Go skills. It features an integrated KataGo engine for AI-powered play and analysis, life-and-death problems, and structured beginner lessons.

### Does OneSolve Go require an internet connection?

No, OneSolve Go is designed to be fully offline. The KataGo engine runs directly on your device, meaning you can play and analyze games without any network connection.

### What are the different game modes in OneSolve Go?

OneSolve Go supports 9x9, 13x13, and 19x19 board sizes with handicaps. It also includes a vast collection of life-and-death problems and beginner lessons.

### How does OneSolve Go help with learning Go?

The app offers 33 beginner lessons structured according to the British Go Association's guide, covering fundamental concepts. It also provides 13,934 graded life-and-death problems for practice.

### Can OneSolve Go analyze my games?

Yes, OneSolve Go allows you to import finished games and have KataGo analyze them move by move. It provides win-rate curves and identifies critical mistakes, along with a rank assessment based on move quality.

### Is OneSolve Go available on multiple devices?

OneSolve Go is available for iPhone and iPad. Games and progress can sync across your devices through iCloud, ensuring a seamless experience.

### What is the pricing for OneSolve Go?

The app is free to download and use. It offers optional Yearly and Lifetime Membership subscriptions for enhanced features, with prices displayed in-app for your region.

### How often is OneSolve Go updated?

The latest version of OneSolve Go is 1.2, last updated on October 4, 2026. Updates typically focus on performance tuning and improvements for Apple devices.

## Version history (last 3 releases)

### 1.2 — 2026-10-04

· The app is now called OneSolve Go in English-language stores and on your Home Screen
· New Copy Share Link: turn a game record into a web link anyone can open in a browser — no app needed. Withdraw links any time from My Shares
· More realistic opening win rates: now estimated from the score lead, so Black no longer looks clearly behind from the first move
· Importing the same game again no longer creates a duplicate, and whole-game analysis is kept after you edit comments
· Fixed komi on Tencent Go records being read at half its value (which skewed opening win rates), a crash when opening an SGF from another app, and slowdowns in large game libraries, plus other UI and stability fixes

### 1.1 — 2026-09-07

· Much smaller download: AI models and the problem library are now downloaded on demand — fetch once, use offline
· New strongest engine b40-zhizi; choose freely among three AI models
· Added kyu opponents from 20k to 2d, driven by a network trained on human games — they play like people, not random bots
· New board skins: beech, rosewood and walnut (membership perk)
· Upgraded learning rewards: 1 day of membership for signing up, 1 more day per 2 chapters completed, and 1 month for finishing all 8
· Gift and paid membership time now stack instead of overlapping
· Bigger edge-to-edge boards in games and problems
· Interface available in Simplified/Traditional Chinese, English, Japanese, Korean and Thai
· Improved board scanning and game-record import, plus various UI and stability fixes

### 1.0 — 2026-08-20

No release notes.

## Apps similar to OneSolve Go

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudam - Go/Baduk AI](https://appshunter.io/ios/app/sudam-gobaduk-ai/id6795918519) | — | Free | Education |
| [NEWBL KataGo](https://appshunter.io/ios/app/newbl-katago/id6762753741) | — | Free | Education |
| [Go AI: KataGo Offline Trainer](https://appshunter.io/ios/app/go-ai-katago-offline-trainer/id6760274188) | 5.0 (3) | Free | Education |
| [Sudam Tsumego: Go Life & Death](https://appshunter.io/ios/app/sudam-tsumego-go-life-and-death/id6815160889) | — | Free | Education |
| [Baduk Dojo: Learn Go](https://appshunter.io/ios/app/baduk-dojo-learn-go/id6778806564) | — | Free | Education |
| [涨棋网](https://appshunter.io/ios/app/id6748336605) | — | Free | Education |

## More apps by Suzhou Vector16 Tech Ltd

- [OneSolve Poker](https://appshunter.io/ios/app/onesolve-poker/id6799014016)
- [OneSolve Gomoku](https://appshunter.io/ios/app/onesolve-gomoku/id6799017008)

All apps by Suzhou Vector16 Tech Ltd: https://appshunter.io/developer/1896112927

## Related topics

[cx360 go](https://appshunter.io/ios/topics/cx360-go) · [fygo](https://appshunter.io/ios/topics/fygo)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-11.*