# Chess Opening Trainer > Simplified chess opening study tool with move scoring and popularity ranking. (iPhone/iPad app by Propersh LLC.) - Source: https://appshunter.io/ios/app/chess-opening-trainer/id1106058837 (this page in markdown: same URL + `.md`) - Developer: [Propersh LLC](https://appshunter.io/developer/862587473) - Category: Games, Education - Price: Free - Rating: 1.40/5 from 7 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 33 MB - Languages: American English - Released: 2016-05-05 - Data updated: 2026-06-11 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/chess-opening-trainer/id1106058837/reviews.md ## What is Chess Opening Trainer? Chess opening is very important for a chess game. There are lots of apps to help one study chess openings. But most of them are too complicate. There are way too many numbers associated with a move. Users will easily be overwhelmed and will lose interests in studying too. Chess Opening Trainer tries to provied an easy and simple interface to study openings. It studied over 2 million games and generated one score for each move. All the moves for each situation are ordered by its popularity. The interface is easy and straight forward. Chess Opening Trainer also provides a way for the user to test his opening knowledge. ## Key features - Simplified interface - Move scoring based on popularity - Analysis of over 2 million games - Straightforward study approach - Opening knowledge testing ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/chess-opening-trainer/id1106058837/reviews.md ### 1/5 — Aweful *2023-04-21* Fix that flaws,,, ### 1/5 — Go back to the drawing board *2021-02-12* The interface and concept are great but, a lot needs to be done. No doubt it’s easy to use, but it doesn’t give me enough information about openings, middle games, or end games. Anyone who has read enough chess books would know there are more chess openings than what is shown. ### 1/5 — Piece of garbage *2018-10-07* Absolutely unusable piece of crap. Nothing good about this thing. ### 4/5 — Simple, clean good but... *2018-05-14* For what is is, this is a nice little app. The interface is simple and clean. Almost too simple— you might not be quite sure what to do, but you touch on a move and then it shows all of the different responses and the percentage played. So you can just see what is most common from the 2,000,000 games — but WHAT 2,00,000? I wish we knew that — the computer has crunched. If it is so good and interesting why the 4star? Well, too little support. One of the lines has Rook a1-e1. Other than their being a knight and queen in the way, it is a good move. How to correct this error? Give feedback? Don’t know. In addition the testing doesn’t seem to work. I made the right play but the computer still thought me wrong. Still I like the app. I love the numbers, I love the way you can go forward and backwards checking out possible moves along the way. It is a good app and if you like chess you should try it. ### 1/5 — Rubbish *2017-07-10, version 1.1* Don't bother with this one ### 1/5 — Bad. Really bad. *2017-06-09* I have never written a review like this. Usually there are things that I like and dislike about an app. So I try to mention both the good and areas that need improvement. Also I rarely review an app unless it's one that I mostly like but feel has a flaw or two that, if corrected, could make it really good or great. This app is useless. If you are trying to learn chess it will give you the idea that by the third or fourth move you have only one choice. If you know how to play chess to any degree its uselessness borders on insulting. After playing through it a few times here's just one example. 1. D4, d5 2. E4, e6 3. B-e3 is the ONLY move available to White. On move 3. Really?!? Because I can think of about half a dozen. The board doesn't rotate. If you want to study a defense for black you're going to have to do it from the white side of the board. In fact there are no settings at all. If you are trying to learn or improve your game this app is is one that you should suggest to your friends that you play with regularly. If they use it you'll have a better chance of winning. ### 3/5 — Like but currently unusable *2016-08-06, version 1.0* I like this app a lot in what it is trying to do. Problem is there is no explanation to how the excel uses are changing or which opening you are on. I pressed next to see how it worked and it moved me to the next opening. The only way to start again was to delete the app and re-install. I'm going to keep trying to see if I can figure it out. ## Frequently asked questions about Chess Opening Trainer ### What is Chess Opening Trainer? Chess Opening Trainer is a mobile application designed to help users study chess openings in a simplified and intuitive way. It analyzes millions of games to provide move scores and popularity rankings. ### How does Chess Opening Trainer simplify opening study? It avoids overwhelming users with too many numbers by providing a single score for each move and ordering them by popularity. This makes the learning process more straightforward and engaging. ### Can I test my knowledge with Chess Opening Trainer? Yes, the application includes a feature that allows users to test their understanding and retention of chess openings they have studied. ### What kind of data was used to create Chess Opening Trainer? The app's move scoring and popularity rankings are based on the analysis of over 2 million chess games, providing a data-driven approach to opening study. ### Does Chess Opening Trainer have ads? Yes, Chess Opening Trainer contains advertisements. ### What devices is Chess Opening Trainer available on? Chess Opening Trainer is available on iPhone, iPad, and iPod devices. ### How often is Chess Opening Trainer updated? The latest version, 2.6, was released on March 1, 2022. The app was initially released on May 5, 2016. ### What is the user rating for Chess Opening Trainer? Chess Opening Trainer has a rating of 1.4 stars based on 7 ratings. ## Version history (last 5 releases) ### 2.6 — 2022-03-01 Restructure of openings. ### 2.5 — 2021-05-12 Added share function for the app to import pgn files: first get the pgn file to the phone, then share it with Chess Opening Trainer. The pgn file must be in the right format: https://en.wikipedia.org/wiki/Portable_Game_Notation ### 2.4 — 2021-01-29 Bug fix. ### 2.3 — 2020-12-19 Minor fix. ### 2.2 — 2020-11-09 Merged with opening names and added more info. ## Apps similar to Chess Opening Trainer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Chess Puzzles Tactics Training](https://appshunter.io/ios/app/chess-puzzles-tactics-training/id6480381614) | 4.6 (202) | Free | Games | | [Chessvis](https://appshunter.io/ios/app/chessvis/id1229226444) | 4.4 (21) | Free | Games | | [Chess Opener PRO](https://appshunter.io/ios/app/chess-opener-pro/id1489282483) | 4.4 (80) | $8.99 | Games | | [Chess Openings - Train, Retain](https://appshunter.io/ios/app/chess-openings-train-retain/id1459782470) | 3.2 (6) | Free | Games | | [Chess Studio Lite](https://appshunter.io/ios/app/chess-studio-lite/id694586937) | 4.4 (11) | Free | Games | | [Chess Opener Lite](https://appshunter.io/ios/app/chess-opener-lite/id1489281014) | 4.1 (17) | Free | Games | ## More apps by Propersh LLC - [XueHanZi](https://appshunter.io/ios/app/xuehanzi/id862587470) - [ParentingBoard](https://appshunter.io/ios/app/parentingboard/id953713986) - [Chess Endgame Trainer](https://appshunter.io/ios/app/chess-endgame-trainer/id1066381775) - [Async Megaphone](https://appshunter.io/ios/app/async-megaphone/id1110365762) - [Note2D](https://appshunter.io/ios/app/note2d/id1175975850) All apps by Propersh LLC: https://appshunter.io/developer/862587473 --- *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 2026-06-11.*