NEWBL KataGo vs OneSolve Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NEWBL KataGo
Read full descriptionHide full description
NEWBL KataGo lets you play baduk matches against AI and review game records with ease. Key Features • AI baduk matches • Kifu viewing and replay • Handicap, komi, and stone color settings • Adjustable AI thinking time Before each match, you can quickly set handicap, komi, your stone color, and the AI thinking speed. After playing, you can open and review kifu to study the flow of the game. Whether you want casual AI matches or a simple way to review game records, NEWBL KataGo helps you enjoy and study baduk in one place. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OneSolve Go
Master the game of Go with this comprehensive offline app. It offers AI-powered training, life-and-death problems, beginner lessons, and game analysis. Optimized for Apple devices, it ensures privacy and performance.
- Offline KataGo engine
- Life-and-death problems
- Beginner lessons
- Game analysis and rank assessment
- Optimized for Apple Silicon
- iCloud game syncing
Read full descriptionHide full description
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
Screenshots
Verdict
The clearest difference is update cadence: NEWBL KataGo at every 2 days against OneSolve Go's every 3 weeks. NEWBL KataGo also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. NEWBL KataGo sells 3 in-app purchases, starting at $0.99 per month and OneSolve Go sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.
NEWBL KataGo ships an update every 2 days, OneSolve Go every 3 weeks. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | NEWBL KataGo | OneSolve Go |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Newbl | Suzhou Vector16 Tech Ltd |
In-app purchases
NEWBL KataGo
- Monthly Unlimited$0.991 Month
- AI Coach$2.991 Month
- Annual Unlimited$4.991 Year
OneSolve Go
- Yearly Member$4.991 Year
- Lifetime Member$7.99






