Chess Opener PRO

3.8
98 reviews
1K+
Downloads
Content rating
Everyone
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About this game

Features


- Chess opening tree with game statistics
- The Encyclopedia of Chess Openings (ECO)
- Database of top 100+ grandmasters’ repertoires
- Stockfish chess engine analysis
- Compare ECO, opening tree and engine moves side by side in any position
- Import and export chess openings in PGN format
- Build your own opening repertoire
- Add or edit comments on moves
- Automatically classify any sequence of moves using the ECO system
- Chess opening explorer highlights moves already in your repertoire
- Chess database includes all transpositions
- Interactive trainer to memorize your chess openings and variations
- Train multiple variations at once against random opponent moves from your repertoire
- Set up a starting position for training
- Track your training progress
- Customize chessboard colors and chess pieces
- Supports dark mode
- No ads
- Works completely offline

CHESS OPENING EXPLORER


Search in the Encyclopedia of Chess Openings, browse the chess opening tree, explore the opening repertoires of famous chess grandmasters, or ask the chess engine to find the best moves. Swipe left or right to switch between the exploration features in any position.

Learn new openings like The Queen’s Gambit, The King’s Indian Defense, and many more!

BUILD YOUR OPENING REPERTOIRE


Add your favorite opening lines to your repertoire using the chess opening explorer or import your openings in PGN format from other chess programs. You can always edit the names of your openings and organize them in your repertoire.

OPENING TRAINER


A simple and efficient method to memorize variations of openings in your repertoire. You can train either white’s moves or black’s moves only or both. Optionally, you can train all variations at once. The trainer chooses the opponent’s moves randomly from your opening repertoire. Chess Opener tracks your progress and shows your stats.
Updated on
5 Sept 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
Committed to follow the Play Families policy

Ratings and reviews

3.5
86 reviews
Achille “Raz” van LaFramboise
12 September 2020
I would say that this app technically does what it promises. However, it is no substitute for... anything. If you want to add an opening to your repertoire, read the Wikipedia article, buy a book, anything. This app is next to useless. Not worth any money whatsoever. There's no description of the ideas behind openings, there's not an option to really train anything beyond the first few book moves, and the "grandmaster openings" are a joke.
6 people found this review helpful
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Stanislav Basovnik
14 September 2020
Hello, Thank you for your review. The free version of this app has all book moves only. Make sure you try other features in the PRO version! It allows PGN import of any size, or you can move pieces freely on the chessboard to explore new variations beyond the book moves.
Tatiana
17 July 2024
So far, this looks like the best chess opening app I have tried. My needs are simple: a premium app that lets me buy it once and not pay a monthly fee, the ability to add any openings I want to practice, and a non-annoying interface that preferably allows customization. If it has a built in database and engine, that makes it basically perfect. This one has all of those things, so great! My only wish is for more theme customization, since I am not a fan of the colors. Still, it works fine for me!
1 person found this review helpful
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Stanislav Basovnik
18 July 2024
Thank you for the feedback! I will keep working on it! If you have more suggestions, don't hesitate to send them to chessopenerapp@gmail.com
Cristobal Campos
8 August 2025
Great App. only needs a little more smoothness when changing from one repertoire to another.
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What's new

- Fixed animations