# Chess Opener Lite — Chess opening trainer > Chess opening trainer and repertoire builder with ECO classification. (iPhone/iPad app by Stanislav Basovnik.) - Source: https://appshunter.io/ios/app/chess-opener-lite/id1489281014 (this page in markdown: same URL + `.md`) - Developer: [Stanislav Basovnik](https://appshunter.io/developer/1469334974) - Category: Games, Education, Board, Strategy - Price: Free - Rating: 4.10/5 from 17 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 52 MB - Languages: French (France), German (Germany), American English, European Spanish - Released: 2020-03-23 - Data updated: 2026-08-18 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/chess-opener-lite/id1489281014/reviews.md ## What is Chess Opener Lite? Features: - Chess opening tree with game statistics - The Encyclopedia of Chess Openings (ECO) - Compare ECO and opening tree moves side by side in any position - 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 - Works completely offline CHESS OPENING EXPLORER Search in the Encyclopedia of Chess Openings or browse the chess opening tree. Swipe left or right to switch between the exploration features in any position. BUILD YOUR OPENING REPERTOIRE Add your favorite opening lines to your repertoire using the chess opening explorer. 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. Upgrade to Chess Opener PRO to unlock more features: - Unlimited repertoire size - Unlimited depth of openings - 6x larger opening tree with game statistics - Database of top 100+ grandmasters’ repertoires - Powerful chess engine analysis - Import openings in PGN format ## Key features - Chess opening tree with game statistics - Encyclopedia of Chess Openings (ECO) - Build and edit opening repertoire - Interactive opening trainer - Offline functionality - PGN export - Progress tracking ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/chess-opener-lite/id1489281014/reviews.md ### 1/5 — Defective app *2024-09-29* This app is full of annoying glitches that make working with the ches opening stressful and irritating. I tried all sorts of ways to remove these annoying bugs but seem organically fixed and untreatabe. **Developer response:** Please send more details about the bugs to chessopenerapp@gmail.com and we will fix them as soon as possible. Thanks for the feedback! ### 5/5 — Best Chess Openings app! *2024-03-19* This is an outstanding application for learning chess openings and for setting up, storing and practicing the ones that you prefer. It would be useful to include the five most often used openings as a starting point for beginners, with comments if possible. ### 2/5 — Pas intuitif et structure à revoir *2023-05-01* Bonjour, cette application n’est pas assez intuitive. Le plus gros défaut est qu’elle mélange le répertoire d’ouverture blanc et noir. Lorsqu’on prépare des ouvertures on le fait pour une couleur ou l’autre. Ensuite on s’entraîne sur les coups qu’on choisit pour chaque couleur. L’application permet de sélectionner des coups par ouverture (qu’elle que soit la couleur). Si on a besoin de saisir une variation, il faut créer une nouvelle ouverture…. C’est très lourd. J’espère que ce commentaire aidera le développeur à augmenter la qualité de son application. ### 2/5 — Fine tuning needed *2021-02-13* The overall app is great but many things aren’t friendly user. The way we add Openings in the Repertoire can be messy very quickly when you use Opening Tree —> Related openings. In the opening tree, the opening title at the top of the screen doesn’t follow the actual position. If you choose exemple 1.e4 c5 2.Nf3 the title say Sicilian Defence which is correct, then I choose d6 which is Sicilian and then I click back to Nf3 to comeback, the title stay at Sicilian instead of Sicilian defence. In the repertoire removing openings is a nightmare. You have to select individually each opening then choose remove. There’s no options to delete multiple items in same time or just delete de main opening trees and all the variations get deleted etc.. Also the train mode could be really more friendly user. Just an exemple the title should change on each move showing where we are in the variation etc.. Etc... Etc.. Many other things that make me delete this app and not buy the Pro version. **Developer response:** Thanks for the feedback! The exploration features provide many flexible ways to discover new openings. They are particularly useful for adding the most promising moves to your existing repertoire. Improved management of large repertoires is coming soon. Please, send me more suggestions to chessopenerapp@gmail.com! ### 1/5 — Really bad *2020-12-30* Really bad u can only learn 5 openings **Developer response:** Check out Chess Opener PRO, the full version with unlimited repertoires, unlimited depth, large chess DB, chess engine and more! ### 5/5 — Excellente application *2020-11-24* Rien de mieux que cette application pour étudier les débuts de parties. ### 5/5 — Very easy way to master openings *2020-07-07* It’s easy to remember your openings. Love it! ## Frequently asked questions about Chess Opener Lite ### What is Chess Opener Lite? Chess Opener Lite is a mobile application designed to help users learn, memorize, and build their chess opening repertoires. It features a comprehensive database and interactive training tools. ### Does Chess Opener Lite work offline? Yes, Chess Opener Lite works completely offline, allowing you to train and study chess openings without an internet connection. ### Can I build my own chess opening repertoire in Chess Opener Lite? Yes, you can add your favorite opening lines to your repertoire using the chess opening explorer. You can edit names, organize them, and add comments to moves. ### How does the opening trainer in Chess Opener Lite work? The opening trainer helps you memorize variations by allowing you to train specific moves or all variations at once against random opponent moves from your repertoire. It tracks your progress and shows your stats. ### What is the ECO system in Chess Opener Lite? The ECO (Encyclopedia of Chess Openings) system is integrated into Chess Opener Lite, allowing you to automatically classify sequences of moves and compare them with the ECO classification. ### What are the limitations of the free version of Chess Opener Lite? The free version has limitations on repertoire size and opening depth. For unlimited features, a larger opening tree, grandmaster repertoires, and engine analysis, users can upgrade to Chess Opener PRO. ### How often is Chess Opener Lite updated? The app was last updated on January 25, 2026, indicating a recent update. While specific update frequency isn't detailed, this suggests ongoing development and support. ### Is Chess Opener Lite suitable for beginners? Chess Opener Lite is suitable for players of all levels looking to improve their openings. Its interactive trainer and comprehensive database can benefit both beginners and experienced players. ## Version history (last 5 releases) ### 1.25.1 — 2026-01-25 - Performance improvements - Bug fixes ### 1.24.5 — 2026-01-14 - Performance improvements - Bug fixes ### 1.24.3 — 2025-10-02 - Performance improvements - Bug fixes ### 1.24.0 — 2025-09-28 - NEW settings: Manual dark/light app theme - Bug fixes ### 1.23.3 — 2025-09-08 - Fixed animations ## Apps similar to Chess Opener Lite | App | Rating | Price | Category | | --- | --- | --- | --- | | [Chess Opener PRO](https://appshunter.io/ios/app/chess-opener-pro/id1489282483) | 4.4 (80) | $8.99 | Games | | [Chess Tactics Pro (Puzzles)](https://appshunter.io/ios/app/chess-tactics-pro-puzzles/id903380719) | 4.7 (3,683) | Free | Games | | [Chess Tactics and Lessons](https://appshunter.io/ios/app/chess-tactics-and-lessons/id531275673) | 4.8 (4,968) | Free | Games | | [Chess - Learn, Play & Trainer](https://appshunter.io/ios/app/chess-learn-play-and-trainer/id378161776) | 4.6 (1,521) | Free | Games | | [Chess.com - Play and Learn](https://appshunter.io/ios/app/chesscom-play-and-learn/id329218549) | 4.8 (807,166) | Free | Games | | [Chessify - Magic Chess Tools](https://appshunter.io/ios/app/chessify-magic-chess-tools/id1397066775) | 4.4 (395) | Free | Games | ## More apps by Stanislav Basovnik - [Chess Opener PRO](https://appshunter.io/ios/app/chess-opener-pro/id1489282483) All apps by Stanislav Basovnik: https://appshunter.io/developer/1469334974 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-18.*