Chess Opening Lab (1400 vs Chess Prep Pro Openings
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chess Opening Lab (1400
This app offers a comprehensive chess opening manual with theoretical reviews and instructive games from grandmasters. It features detailed classifications, evaluations, and characteristics of key moves, along with interactive lessons and over 350 training exercises.
- Theoretical review of all chess openings
- Instructive games with detailed annotations
- Interactive theoretical lessons
- 350+ training exercises
- Evaluations and characteristics of key moves
- History and current status of variations
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This is a perfect opening manual. It features a theoretical review of all the chess openings, which are illustrated by instructive games of the greatest chess players. This compact opening manual contains a detailed classification, which makes it useful to players of any level - beginners, intermediate and advanced players. Each opening variation is supplied with evaluations and characteristics of key moves. The history of the variations' development is described, as well as their current status. The theoretic material is nicely illustrated by classic games with detailed annotations that demonstrate the principal ideas and plans of each variation for White and Black. There is also a special training section with more than 350 exercises of various difficulty on more than 40 openings. This course is in the series Chess King Learn, 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. The program also contains a theoretical section, which explains the methods of the game in a certain stage of the game, based on actual examples. The theory is presented in an interactive way, which means you can not only read the text of the lessons, but also to make moves on the board and work out unclear moves on the board. 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. Ilyin-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 17. Grünfeld defense 18. Italian game & Hungarian defense 19. King's Indian defense 20. Latvian gambit 21. Nimzo-Indian defense 22. Nimzowitsch defense 23. Old Indian defense 24. Philidor's defense 25. Pirc-Robatsch defense 26. Queen's gambit 27. Queen's Indian defense 28. Queen's pawn game 29. Reti opening 30. Petrov's defense 31. Ruy Lopez 32. Scandinavian defense 33. Scotch gambit & Ponziani's opening 34. Scotch game 35. Sicilian defense 36. Three knights' game 37. Two knights' defense 38. Vienna game 39. Volga-Benko gambit 40. The complete course of openings
Chess Prep Pro Openings
Master chess openings by building custom repertoires and training your memory. Analyze opponent moves, discover blind spots, and utilize an advanced engine for in-depth preparation. Expand your knowledge with downloadable repertoires and import/export PGNs.
- Custom chess opening repertoires
- Repertoire training and memory sharpening
- Blind spot finder against player games
- Chess openings player database
- Advanced StockFish engine analysis
- Downloadable and importable repertoires
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Master chess openings: Build chess opening repertoires & memorise your openings.Chess Prep Pro is the ultimate chess openings app, designed to perfect your openings and elevate your game through custom chess opening repertoire creation and training. How does it work? Chess Prep Pro allows you to create your own custom chess openings repertoires, and prepare for any opponent move. A chess opening repertoire is an opening plan that contains player responses for opponent moves in the opening phase of the game. With a chess opening repertoire, you will not be left scrambling to find the best move during a real game, as you will already remember the best move from studying and practicing your repertoire. Discover Chess Prep Pro's Features: - Custom Chess Opening Repertoires: Build unlimited custom repertoires for any chess opening. Add as many moves and variations as you need to be prepared for every game. - Repertoire Training: Sharpen your memory with chess opening repertoire training. The app challenges your memory with random positions from your opening repertoire, tracking your progress and helping you master every move. - Blind Spot Finder: Stay ahead of your opponents with our blind spot finder feature that analyses your chess openings repertoire against billions of player games, identifying the most likely opponent moves that you did not prepare for. - Chess openings player database: You can use a player openings database that contains billions of moves to find out the most likely opponent move to prepare for. - Advanced Engine: Utilize the latest StockFish engine for in-depth analysis and uncover the best responses to any situation on the board. - Downloadable opening repertoires: Expand your opening knowledge with an ever-growing library of specially created and sourced opening repertoires, curated for your success. - Import / Export: Easily import and export PGNs to and from the app. You can even import liches studies. Master your chess openings now !
Screenshots
Verdict
The clearest difference is ads: Chess Opening Lab (1400 at none against Chess Prep Pro Openings's shown. Chess Opening Lab (1400 also leads on ratings volume (593 vs 22) and rating (4.7 vs 4.5). Chess Prep Pro Openings's advantage is update cadence (fortnightly vs every 3 months) and review sentiment (75% vs 66%). 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
Both are free to download. Chess Opening Lab (1400 sells 1 one-off in-app purchase and Chess Prep Pro Openings sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Chess Opening Lab (1400 holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Chess Opening Lab (1400 has 593 ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 66% of Chess Opening Lab (1400's written reviews are positive against 75% of Chess Prep Pro Openings's, so the app with the better star average is not the one people write more warmly about.
Chess Opening Lab (1400 ships an update every 3 months, Chess Prep Pro Openings fortnightly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Chess Opening Lab (1400 | Chess Prep Pro Openings |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (593 ratings) — better | 4.5 (22 ratings) |
| Positive reviews | 65.5% of reviews | 75.0% of reviews — better |
| Number of ratings | 593 — better | 22 |
| Update frequency | Every 3 months | Fortnightly — 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 | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 45 MB | 214 MB |
| Age rating | 4+ | 4+ |
| Developer | Chess King | Tomasz Bogun |
Customer experience
Chess Opening Lab (1400
Chess Prep Pro Openings
Bugs and requests
Chess Opening Lab (1400
Reported bugs
9 issues- Recorded moves not highlighted or disappear
- White spot instead of recorded move
- Have to buy full course multiple times
- App forgets purchase
- Animation speed doesn't decrease
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- Cannot skip or save variations
- Too many variations distract from main line
- Cannot replay exercise from beginning
- App deletes and asks for repurchase
Requested features
9 requests- More exercises for different openings
- More examples of opening systems
- Give 20 or more examples of different openings
- Explanations in French
- Reference books
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- Translation to Spanish
- Translation to Turkish
- Show colorful lines in animation
- Include lines for Sicilian defense gambits
Chess Prep Pro Openings
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Chess Opening Lab (1400
- Full course$12.99
Chess Prep Pro Openings
- Monthly premium subscription$3.991 Month
- Yearly premium$24.991 Year
- Lifetime Premium$59.99
Questions
Is Chess Opening Lab (1400 free?
Is Chess Prep Pro Openings free?
Which has better reviews, Chess Opening Lab (1400 or Chess Prep Pro Openings?
Do Chess Opening Lab (1400 or Chess Prep Pro Openings have ads?
Which is updated more often, Chess Opening Lab (1400 or Chess Prep Pro Openings?
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