Comparison

Learn Chess with Dr. Wolf vs One By One

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

Head to head
About

Learn Chess with Dr. Wolf

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
Read full description

Looking to learn how to play chess? Meet Dr. Wolf, the ideal chess coach and companion. Dr. Wolf explains everything to you step-by-step, points out strategic ideas, and alerts you to your mistakes. Whether you are a chess beginner eager to learn the basics or an intermediate player looking to refine your strategy, Dr. Wolf tailors the learning experience to your individual needs, offering over 50 comprehensive chess lessons and interactive guidance at every step. **Why Choose Learn Chess with Dr. Wolf?** - **Personalized Coaching:** Experience the unique teaching method of Dr. Wolf, who not only instructs but also plays alongside you, providing insights into every move. He will introduce topics to you as you play chess, ensuring you grasp the “why” behind each move. - **Audible Coaching**: Dr. Wolf speaks out-loud. Actual audio! Experience the unique advantage of having Dr. Wolf speak to you while you look at the board, offering clear, spoken explanations for every move. - **A Comprehensive Chess Curriculum:** Engage with an extensive suite of over 50 interactive chess lessons. Starting from foundational concepts, you'll progress through to advanced strategies and tactics, all structured to enhance your understanding and performance in chess. - **Mistake Correction and Practice:** Learn from your mistakes in a constructive environment. Dr. Wolf remembers all your moves and goes over them again with you so you don’t make the same mistakes again. - **Diverse Coaching Personalities:** Choose from four distinct coach profiles, each with a unique voice, teaching style and personality. You’ll be sure to find the right chess coach for you. - **Gradual Learning of Chess Vocabulary:** Expand your vocabulary and understanding of key terms and concepts at a comfortable pace. - **Adaptive Difficulty Level:** Choose from a variety of skill levels, ensuring you're always challenged but never overwhelmed. - **Multilingual Support**: Available in English, Spanish, French, and German. **Learn the game and how to win.** "Learn Chess with Dr. Wolf" blends comprehensive lessons, personalized feedback, and interactive learning, offering a standout experience for those new to chess or aiming to enhance their skills. Whether your goal is to understand chess better, win more games, or simply enjoy this timeless strategy game more deeply, Dr. Wolf is here to guide you every step of the way. --------------------------------------------- Dr. Wolf will coach you for free for 3 games of chess so that you can appreciate his style of in-game teaching. Then, to continue learning, you can subscribe to Coaching. With Coaching, Dr. Wolf teaches while you play chess, pointing out good moves and bad — both yours and his — and the reasoning behind them. At times, he'll gently suggest you reconsider a move, or ask a question at a critical moment. Plus, you get unlimited hints, unlimited undos, and unlimited access to our Lesson Library, with over thirty lessons in Dr. Wolf's unique style. Whether or not you choose to subscribe, Dr. Wolf will always play with you. He loves chess too much to turn down a good game. ** TERMS & DETAILS ** Payment will be charged to your iTunes account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Account will be charged the same amount for renewal within 24 hours prior to the end of the current period. You can manage your subscription and turn off auto-renewal by going to your Account Settings after purchase. Any unused portion of a Free Trial, if offered, is forfeited when you buy a subscription. Prices may vary by location. Terms of Use: https://www.learnchesswithdrwolf.com/terms-of-use Privacy Policy: https://www.learnchesswithdrwolf.com/privacy-policy

About

One By One

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
Read full description

One By One is a retro math study game built for middle and high school students looking to level up their mental math skills. Featuring randomly generated problems, the app lets you switch from basic arithmetic to advanced calculus. You can also target specific practice areas using the One By One Battles mode or the premium Sandbox mode. Key Features Retro Calculator Aesthetic: Enjoy a nostalgic UI designed with classic Unicode and ASCII art, complete with satisfying mechanical key clicks and atmospheric background music. Four Math Disciplines: Practice everything from basic arithmetic and high school algebra to trigonometric functions (complete with a built-in unit circle) and calculus derivatives. Leveling System: Progress all the way from Level 1 to 99, unlocking brand-new question tiers every ten levels. AI Battles & Training: Test your speed in targeted training modes or race against AI opponents to earn in-game rewards. Artifacts & Upgrades: Solve rare "Golden Problems" to collect 25 unique math artifacts featuring 9 distinct upgrades to shape your strategy. Leaderboards & Achievements: Compete across 5 specialized leaderboards, including a balance-based leaderboard, and uncover hidden achievements. Download One By One and start solving math faster than your teacher! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Learn Chess with Dr. Wolf4 screens
One By One4 screens

Verdict

The call

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 (#108 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.

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. 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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 7 level
Learn Chess with Dr. Wolf versus One By One: the parameters behind the verdict, then further details
ParameterLearn Chess with Dr. WolfOne By One
PriceFreeFree
Rating4.8 (27K ratings) — better4.8 (77 ratings)
Positive reviews81.9% of reviews90.9% of reviews — better
Number of ratings27K — better77
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#108 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size112 MB64 MB
Age rating4+4+
DeveloperChess.comBrice Brown

Customer experience

Learn Chess with Dr. Wolf

All ratings27,165 ratings
Positive95.9%
Neutral2.4%
Negative1.7%
Written reviews647 reviews
Positive81.9%
Neutral7.0%
Negative11.1%

One By One

All ratings77 ratings
Positive94.8%
Neutral1.3%
Negative3.9%
Written reviews22 reviews
Positive90.9%
Neutral4.5%
Negative4.5%

Bugs and requests

Learn Chess with Dr. Wolf

Reported bugs

2 issues
  • Freezing or crashing when switching between apps
  • Subscription status not syncing across devices

Requested features

5 requests
  • 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

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Learn Chess with Dr. Wolf

Subscriptions9
  • Dr. Wolf Coaching - Monthly14 Days trial$5.991 Month
  • Dr. Wolf Coaching - Monthly7 Days trial$5.991 Month
  • Dr. Wolf Coaching - Individual7 Days trial$5.991 Month
Show 6 more
  • Dr. Wolf Coaching - Monthly7 Days trial$6.991 Month
  • Dr. Wolf Coaching - Yearly14 Days trial$39.991 Year
  • Dr. Wolf Coaching - Yearly7 Days trial$39.991 Year
  • Dr. Wolf Coaching - Individual14 Days trial$39.991 Year
  • Dr. Wolf Coaching - Yearly$49.991 Year
  • Dr. Wolf Coaching - Family14 Days trial$49.991 Year
One-time1
  • 30 Days of Coaching$4.99
3 purchases

One By One

Subscriptions2
  • Monthly Support$1.991 Month
  • Yearly Support$12.991 Year
One-time1
  • Lifetime Supporter pass$19.99

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.

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