Go Problems vs Go Challenger
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Go Problems
Sharpen your Go skills with a vast collection of hand-picked problems. Track your progress, solve life and death, and tesuji challenges, and receive personalized problem recommendations based on your skill level. Daily practice is made easy with this app.
- Over 4,500 Go problems
- Life and death and tesuji problems
- Automatic rating calculation
- Bookmarking favorite problems
- Auto-problem mode adjusts to skill
- Progress tracking by difficulty
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Improve your go by solving go problems. All problems hand-picked from the goproblems.com database. Over 4,500 problems to start, and more will be added over time. This app will automatically calculate your rating as you attempt the problems. Life and death and tesuji problems are the fastest way to get stronger at go. This app will help you practice every day. App features: * Over 200 free problems * Retina display on iPhone and iPad * Bookmarking your favorite problems * Auto-problem mode finds problems at your level and adjusts to your skill * Track your progress at each problem difficulty level * Two-finger swipe to quickly change between problems
Go Challenger
Enhance your Go skills with daily Life & Death quizzes and AI-powered move analysis. Practice thousands of problems tailored to your level, compete globally, and test your abilities.
- AI-powered move analysis
- 5,000+ Life & Death quizzes
- Daily tailored quizzes
- Global user competition
- Level testing
- Customizable Go stones and boards
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High-quality Life&Death application that is more fun and easy to understand with AI responding to all moves! It is a Go game that was created with the long-standing know-how and technology of the global Go site TYGEM. Improve your Go skills with carefully selected Life&Death quizzes every day. Characteristics of the game - PRO AI will respond to all your moves until you understand them. AI accepts all the wrong moves, so you can try indefinitely with your own thoughts. If you try multiple times, you'll be close to the answer. - There are approximately 5,000 high-quality Life&Death quizzes waiting for you. The quizzes are divided by "To kill" and "To live", so you can choose the quiz you want and try it. Also, each is divided into 7 levels of difficulty, so experience the quiz that fits your level right away. - A new quiz tailored to your Go level is recommended every day. Challenge your own Life&Death quizzes that change every day. Life&Death quizzes tailored to your level will upgrade your Go level further. - Compete with users all over the world Each quiz has a record of the number of challenges and success rates of users worldwide. If you succeed in a Life&Death quiz for the first time, you will remain the eternal successful challenger of the quiz. Try challenging quizzes with low success rates - How strong is my Life&Death level? You don't have to solve all the quizzes to know your level. Check your level in a short period of time with the level test. If you knew your level, all you have to do is boost your level. - Various Go stones and Go board skins If you're tired of the classic Go background, try changing the Go skin to suit your taste. There are many combinations of Go stones and Go boards, so find the best combination that makes you feel the best.
Screenshots
Verdict
The clearest difference is rating: Go Challenger at 4.7 against Go Problems's 3.2. Go Challenger also leads on review sentiment (58% vs 45%). Go Problems's advantage is ads (none vs shown) and ratings volume (15 vs 3). On price, update cadence, in-app purchases and monetization model 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. Go Problems sells 10 one-off in-app purchases and Go Challenger sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Go Challenger holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Go Problems has 15 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 45% of Go Problems's written reviews are positive against 58% of Go Challenger's.
Go Problems ships an update every 2 months, Go Challenger every 5 weeks. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.
| Parameter | Go Problems | Go Challenger |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (15 ratings) | 4.7 (3 ratings) — better |
| Positive reviews | 44.8% of reviews | 58.3% of reviews — better |
| Number of ratings | 15 — better | 3 |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 36 MB | 109 MB |
| Age rating | 4+ | 4+ |
| Developer | Adumbration, Inc. | Com2uS TYGEM Corporation |
Customer experience
Go Problems
Go Challenger
In-app purchases
Go Problems
- Carpenter's Square Problem Set$0.99
- Standard Problem Set 9$1.99
- Standard Problem Set 1$2.99
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- Standard Problem Set 2$2.99
- Standard Problem Set 3$2.99
- Standard Problem Set 4$2.99
- Standard Problem Set 5$2.99
- Standard Problem Set 6$2.99
- Standard Problem Set 7$2.99
- Standard Problem Set 8$2.99
Go Challenger
- Key Single Item 1$1.99
- Ad Removal Item$1.99
- Key Single Item 2$3.99
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- Monthly limitation$5.99
- Key Single Item 3$19.99









