Comparison

Chess Opening Blunders vs Chess Openings

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

Head to head
About

Chess Opening Blunders

Learn chess by studying common opening mistakes and traps. This app offers interactive lessons with over 1,250 exercises across more than 40 openings, acting as a personal coach to guide you through challenges.

Highlights
  • Learn opening mistakes and traps
  • Over 1,250 instructive exercises
  • Covers more than 40 chess openings
  • Interactive lessons with hints and explanations
  • Play positions against the computer
  • Monitors player rating (ELO)
Features
Read full description

Encyclopedia of Opening Blunders – learn to play chess by learning the opening mistakes and traps that have been discovered over time. The program is designed for studying the blunders in more than 40 openings and contains over 1,250 instructive exercises of varying difficulty from practical games. This course is in the series Chess King Learn (https://learn.chessking.com/), which is an unprecedented chess teaching method. In the series are included courses in tactics, strategy, openings, middle game, and endgame, split by levels from beginners to experienced players, and even professional players. With the help of this course, you can improve your chess knowledge, learn new tactical tricks and combinations, and consolidate the acquired knowledge into practice. The program acts as a coach who gives tasks to solve and helps to solve them if you get stuck. It will give you hints, explanations and show you even striking refutation of the mistakes you might make. Advantages of the program: • High quality examples, all double-checked for correctness • You need to enter all key moves, required by the teacher • Different levels of complexity of the tasks • Various goals, which need to be reached in the problems • The program gives hint if an error is made • For typical mistaken moves, the refutation is shown • You can play out any position of the tasks against the computer • Interactive theoretical lessons • Structured table of contents • The program monitors the change in the rating (ELO) of the player during the learning process • Test mode with flexible settings • Possibility to bookmark favorite exercises • The application is adapted to the bigger screen of a tablet • The application does not require an internet connection The course includes a free part, in which you can test the program. Lessons offered in the free version is fully functional. They allow you to test the application in real world conditions before releasing the following topics: 1. Rare variations 1.1. 1.g3, 1.b4, .. 1.2. 1.b3 1.3. 1.d4 1.4. 1.d4 Nf6 1.5. 1.d4 Nf6 2.Nf3 2. Alekhine's defense 3. Benoni defense 4. Bird's opening 5. Bishop's opening 6. Blumenfeld counter-gambit 7. Bogo-indian defense 8. Budapest gambit 9. Caro-Kann 10. Catalan system 11. Center gambit 12. Dutch defense 12.1. Dutch defense 12.2. Iljin Genevsky system 12.3. Leningrad system 12.4. Staunton gambit 12.5. Stonewall variation 13. English opening 14. Evans gambit 15. Four knights' game 16. French defense 16.1. French defense 16.2. Classical variation 16.3. Tarrasch variation 16.4. Winawer variation 17. Grünfeld defense 18. Italian game & Hungarian defense 19. King's gambit 20. King's indian defense 20.1. King's indian defense 20.2. Classical variation 20.3. Fianchetto variation 20.4. Four pawns' attack 20.5. Saemisch variation 21. Latvian gambit 22. Nimzo-indian defense 22.1. Nimzo-indian defense 22.2. Leningrad variation 22.3. Rubinstein variation 22.4. Saemisch variation 23. Nimzowitsch defense 24. Old indian defense 25. Philidor's defense 26. Pirc-Robatsch defense 27. Queen's gambit 27.1. Queen's gambit 27.2. Queen's gambit accepted 27.3. Albin counter-gambit 27.4. Cambridge-Springs variation 27.5. Exchange variation 27.6. Orthodox defense 27.7. Lasker defense 27.8. Tartakower defense 27.9. Ragozin system 27.10. Semi-Slav defense 27.11. Semi-Tarrasch defense 27.12. Slav defense 27.13. Tarrasch defense 27.14. variation with 5.Bf4 28. Queen's indian defense 29. Queen's pawn game 30. Reti opening 31. Petroff's defense 32. Ruy Lopez 32.1. Ruy Lopez 32.2. Berlin defense 32.3. Bird's defense 32.4. Breyer variation 32.5. Chigorin defense 32.6. Classical defense 32.7. Exchange variation 32.8. Marshall attack 32.9. Steinitz defense deferred 32.10. Steinitz defense 33. Scandinavian defense 34. Scotch gambit & Ponziani's opening 35. Scotch game 36. Sicilian defense 37. Three knights' game 38. Two knights' defense 39. Vienna game 40. Volga-Benko gambit

About

Chess Openings

Master chess openings with this trainer. Memorize popular professional game sequences, explore over 1750 openings, and test your recall with randomized drills. Learn a new opening daily to enhance your chess strategy.

Highlights
  • Memorize popular openings
  • Explore 1750+ openings
  • Test memory with randomized openings
  • Daily opening learning
  • Learn grandmaster variations
Features
Read full description

- Learn: Memorize the most popular openings played in professional games. - Browse: Explore 1750+ openings. - Test: Test your memory by going through randomized openings that you've memorized. - Daily Openings: Learn one random opening a day. Learning different opening sequences is critical in improving in chess. Chess Openings is an app that makes it easier for you to memorize all of your favorite openings. Browse through 1700 openings and learn variations of openings that grandmasters use.

Screenshots

Chess Opening Blunders4 screens
Chess Openings4 screens

Verdict

The call

The clearest difference is rating: Chess Opening Blunders at 4.7 against Chess Openings's 3.2. Chess Opening Blunders also leads on ads (none vs shown) and review sentiment (84% vs 60%). On price, in-app purchases, monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chess Opening Blunders sells 1 one-off in-app purchase and Chess Openings sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Chess Opening Blunders holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Chess Opening Blunders has 247 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 84% of Chess Opening Blunders's written reviews are positive against 60% of Chess Openings's.

UpkeepUpdate frequency

Chess Opening Blunders ships an update every 2 months, Chess Openings every 4 months. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 4 level
Chess Opening Blunders versus Chess Openings: the parameters behind the verdict, then further details
ParameterChess Opening BlundersChess Openings
PriceFreeFree
Rating4.7 (247 ratings) — better3.2 (6 ratings)
Positive reviews84.1% of reviews — better60.0% of reviews
Number of ratings247 — better6
Update frequencyEvery 2 months — betterEvery 4 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size43 MB60 MB
Age rating4+4+
DeveloperChess KingHodgepodge Apps LLC

Customer experience

Chess Opening Blunders

All ratings246 ratings
Positive95.1%
Neutral2.4%
Negative2.4%
Written reviews44 reviews
Positive84.1%
Neutral4.5%
Negative11.4%

Chess Openings

All ratings6 ratings
Positive50.0%
Neutral16.7%
Negative33.3%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

1 purchases

Chess Opening Blunders

One-time1
  • Full course$12.99
3 purchases

Chess Openings

One-time3
  • Remove Ads$2.99
  • Unlimited Engine$2.99
  • Extra Openings$3.99

Questions

Is Chess Opening Blunders free?
Chess Opening Blunders is free to download, with in-app purchases available.
Is Chess Openings free?
Chess Openings is free to download, with in-app purchases available.
Which has better reviews, Chess Opening Blunders or Chess Openings?
Chess Opening Blunders is rated higher. Chess Opening Blunders averages 4.7 out of 5 from 247 ratings, while Chess Openings averages 3.2 from 6 ratings.
Do Chess Opening Blunders or Chess Openings have ads?
Chess Openings shows ads; Chess Opening Blunders does not.
Which is updated more often, Chess Opening Blunders or Chess Openings?
Chess Opening Blunders ships an update every 2 months, and Chess Openings every 4 months. Most recently, Chess Opening Blunders was updated on October 26, 2026 and Chess Openings on October 7, 2026.

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