# Learn Chess with Dr. Wolf vs One By One The clearest difference is ads: Learn Chess with Dr. Wolf at none against One By One's shown. Learn Chess with Dr. Wolf also leads on ratings volume (27K vs 77) and chart position (#94 vs unranked). One By One's advantage is review sentiment (91% vs 82%). On price, rating, update cadence and in-app purchases there is nothing between them. Both are free to download. Learn Chess with Dr. Wolf sells 10 in-app purchases, starting at $5.99 per month and One By One sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters. On the App Store both sit at effectively the same score — 4.8 for Learn Chess with Dr. Wolf against 4.8 for One By One. That said, the two scores are not equally well evidenced: Learn Chess with Dr. Wolf has 27K ratings behind it against 77, so its average is the more settled of the two. Written reviews are what separate them: 82% of Learn Chess with Dr. Wolf's written reviews are positive against 91% of One By One's. Learn Chess with Dr. Wolf ships an update every 3 weeks, One By One every 2 weeks. The most recent releases landed on November 8, 2026 and November 3, 2026 respectively. ## The numbers | Metric | Learn Chess with Dr. Wolf | One By One | | --- | --- | --- | | Price | Free | Free | | Rating | **[4.8 (27K ratings)](https://appshunter.io/ios/app/learn-chess-with-dr-wolf/id1353041020/reviews)** | [4.8 (77 ratings)](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023/reviews) | | Number of ratings | **27K** | 77 | | Positive reviews | 81.9% of reviews | **90.9% of reviews** | | In-app purchases | Yes | Yes | | Ads | **No** | Yes | | Update frequency | Every 3 weeks | **Every 2 weeks** | | Monetization | Free with in-app purchases | Free with in-app purchases | | Best chart rank | **#94** | — | | Size | 112 MB | 64 MB | | Requires iOS | 15.0 | 15.0 | | Devices | iPhone, iPad, iPod | iPhone, iPad, iPod | | Age rating | 4+ | 4+ | | Developer | [Chess.com](https://appshunter.io/developer/329218552) | [Brice Brown](https://appshunter.io/developer/1555846025) | ## What reviewers say ### Learn Chess with Dr. Wolf [App page](https://appshunter.io/ios/app/learn-chess-with-dr-wolf/id1353041020) **Currently charting:** #94 Top Grossing · Board, #175 Top Free · Strategy, #208 Top Free · Board (US App Store) This app provides personalized chess coaching with an AI companion. It offers step-by-step lessons, mistake correction, and audible guidance to help beginners and intermediate players improve their strategy and understanding of the game. **Highlights:** Personalized AI coaching, Audible spoken explanations, Over 50 interactive lessons, Mistake correction and practice, Multiple coach personalities, Adaptive difficulty levels, Multilingual support **Features:** macOS Compatibility, Family Sharing, Vision Pro support **In-app purchases (10)** | Purchase | Price | Billing | | --- | --- | --- | | Dr. Wolf Coaching - Monthly | $5.99 | per month | | Dr. Wolf Coaching - Monthly | $5.99 | per month | | Dr. Wolf Coaching - Individual | $5.99 | per month | | Dr. Wolf Coaching - Monthly | $6.99 | per month | | Dr. Wolf Coaching - Yearly | $39.99 | per year | | Dr. Wolf Coaching - Yearly | $39.99 | per year | | Dr. Wolf Coaching - Individual | $39.99 | per year | | Dr. Wolf Coaching - Yearly | $49.99 | per year | | Dr. Wolf Coaching - Family | $49.99 | per year | | 30 Days of Coaching | $4.99 | one-time | **What reviewers like** - 👍 Well-thought-out app - 🚀 Great teaching tool - 🤖 Friendly and encouraging AI coach - 💡 Unique interface and gameplay - 🎓 Helpful lessons and training **What reviewers complain about** - 🐛 Incorrect move suggestions - 🤔 Lack of explanations for best moves - 💰 Subscription-based model - 🤖 AI can play suboptimally at times - 🔍 Limited visibility of captured pieces **Reported bugs** - Freezing or crashing when switching between apps - Subscription status not syncing across devices **Requested features** - More detailed explanations for suggested moves - Additional difficulty levels between beginner and expert - Ability to practice specific openings - Option to review full game history - Accessibility features for visually impaired users ### One By One [App page](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023) Practice arithmetic, algebra, trigonometry, and calculus with a retro-style math game. Level up by solving problems, unlock new challenges, and compete on leaderboards. Enhance your skills with artifacts and strategic upgrades. **Highlights:** Randomly generated math problems, Leveling system with unlockable content, Practice arithmetic, algebra, trigonometry, and calculus, Retro ASCII art and music style, Leaderboards and achievements, Math artifacts and upgrades, AI battle mode for targeted practice **Features:** macOS Compatibility, Vision Pro support **In-app purchases (3)** | Purchase | Price | Billing | | --- | --- | --- | | Monthly Support | $1.99 | per month | | Yearly Support | $12.99 | per year | | Lifetime Supporter pass | $19.99 | one-time | ## Frequently asked questions ### Is Learn Chess with Dr. Wolf free? Learn Chess with Dr. Wolf is free to download, with in-app purchases available. ### Is One By One free? One By One is free to download, with in-app purchases available. ### Which has better reviews, Learn Chess with Dr. Wolf or One By One? Learn Chess with Dr. Wolf is rated higher. Learn Chess with Dr. Wolf averages 4.8 out of 5 from 27K ratings, while One By One averages 4.8 from 77 ratings. ### Do Learn Chess with Dr. Wolf or One By One have ads? One By One shows ads; Learn Chess with Dr. Wolf does not. ### Which is updated more often, Learn Chess with Dr. Wolf or One By One? Learn Chess with Dr. Wolf ships an update every 3 weeks, and One By One every 2 weeks. Most recently, Learn Chess with Dr. Wolf was updated on November 8, 2026 and One By One on November 3, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*