# Chess Openings Explorer Pro — Study & improve your openings

> Chess openings explorer with GM game analysis and interactive quizzes. (iPhone/iPad app by Emmanuel Mathis.)

- Source: https://appshunter.io/ios/app/chess-openings-explorer-pro/id1083431778 (this page in markdown: same URL + `.md`)
- Developer: [Emmanuel Mathis](https://appshunter.io/developer/892041879)
- Category: Games, Board, Puzzle
- Price: $3.99
- Rating: 4.60/5 from 349 App Store ratings · 64 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 40 MB
- Languages: American English, French (France), German (Germany)
- Released: 2018-04-22
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/chess-openings-explorer-pro/id1083431778/reviews.md

## What is Chess Openings Explorer Pro?

Explore chess openings and their variations through a simple and friendly interface, and learn the follow-ups from 2 million+ Grandmaster games!

Main features:
- Complete dictionary of chess openings and their variations
- Browse Grandmaster games associated with each opening
- Test your knowledge with various Quiz modes: The app picks an opening and your goal is to either find its name, find which move is best, or play the moves that leads to the opening

- Accurate stats for each position: % of wins, losses, draws
- Powerful built-in Chess engine (2800+ Elo) to analyze any position
- Games can be exported to other apps (PGN format)
- Search openings by name or ECO code
- Easy to use, simple and clean interface
- Full translations in French and German, including opening names
- And of course, new features will be added over time!

## Key features

- Chess opening dictionary
- Grandmaster game analysis
- Interactive quiz modes
- Position win/loss/draw stats
- Built-in chess engine
- PGN export

## Chart rankings

- #64 in Top Paid · Board (US App Store)
- #144 in Top Paid · Puzzle (US App Store)

## What do users think of Chess Openings Explorer Pro?

Overall sentiment: mixed

**Pros**

- 📚 Extensive database of grandmaster games (2 million+)
- 🎯 Intuitive opening explorer interface
- 📊 Clear visualization of move statistics and win rates
- 🎮 Easy access to replay master games
- 💡 Practical and pedagogical approach to learning openings
- 📈 Helps understand openings better than traditional methods
- 🎨 Clean, classic chessboard display
- ⚡ Efficient and convenient study tool
- 🔄 PGN export functionality
- ✅ Good organization of openings and variations

**Cons**

- ⚠️ Limited depth - only covers ~5 moves in most lines
- ❌ Lacks built-in chess engine for analysis
- 😕 Confusing user interface for beginners
- 📖 Insufficient documentation and help instructions
- 🤷 Unclear what statistics and percentages mean
- 💸 Expensive for the features offered
- 🚫 Cannot play own moves in explore mode
- 📱 Text truncation on opening names (iPhone display issue)
- 🔍 Shallow variant coverage and exploration
- ⚙️ Limited features compared to price point
- 🐛 Games fail to load frequently
- 🎯 Not suitable for intermediate/advanced players
- 📵 No landscape mode support on iPad

**Commonly reported bugs**

- Games fail to load with 'failed to load games' error
- Wrong position displayed when accessing games from position
- Text truncation on opening names (iPhone)
- Incompatibility with older devices (iPad 4)
- App crashes or freezes
- Recent update caused game loading issues

**Most requested features**

- Built-in chess engine for position evaluation
- Ability to play own moves and get engine feedback
- Play openings against computer opponent
- PGN import functionality
- Quiz mode by opening
- Deeper variant coverage beyond move 5
- Suggest new openings feature
- Engine analysis when opening book ends
- Better explanation of move choices
- Expanded opening database
- Improved text display for full opening names
- More sophisticated sorting options

## Recent user reviews (10 of 64)

All indexed reviews: https://appshunter.io/ios/app/chess-openings-explorer-pro/id1083431778/reviews.md

### 4/5 — Ist okay

*2026-06-07*

Die App zeigt einfach und pragmatisch die Eröffnungen an. Das kompakte Design passt. Allerdings wäre eine Funktion bei den Lesezeichen sinnvoll, um Eröffnungen speichern zu können. Das suchen jedes Mal nervt. Man kann nur Spiele mit den Eröffnungen speichern. Macht tatsächlich kaum Sinn.

### 1/5 — Pas top

*2026-02-02*

Ni simple ni conviviable

### 2/5 — Bien mais manque les quiz??

*2025-08-07*

Bien mais manque les quiz??

### 1/5 — A fuir

*2025-02-26*

Vraiment nul... regret

### 5/5 — Pedagógico

*2024-10-28*

Muy práctico y didáctico.  Está genial. Te enseña muchísimas partidas de GM

### 5/5 — Best app to practice openings

*2024-08-01*

Awesome interface! You can instantly see which opening moves result in game wins, and conveniently practice the numerous variations. One of my favorite features is that you can see and replay games by chess masters using each opening. I’ve been playing chess for decades, and this app helped me “get” the openings in a few weeks better than any other training or coaching over the years!

Well done to the developers! Hope they keep the app going.

### 2/5 — Not friendly user

*2024-07-18*

It is not fun and it is not easy to understand how to use this app, your one other app named “problemas de ajedrez” is excellent and free, I expected more of this one which is paid.

### 4/5 — Avis Amélioration

*2024-07-17*

Bon travail. 

Amélioration ->  pouvoir jouer l’ouverture (blanc) et l’ordinateur (noir), controler l’ouverture et l’ordinateur les pièces noir.

Merci

### 3/5 — Basic opening explorer

*2024-06-30*

Covers the basics, but does not go into depth in many key opening positions, and does not include an engine to analyse the final positions.

### 3/5 — Ok

*2024-01-05*

Je n’ai pas vraiment l’impression à mon niveau que cette application me soit utile. 
Eut ette comme pount de recherche sur youtube ou bouquin afin n’approfondir les « leçons ? Interessante mais sans plus.

## Frequently asked questions about Chess Openings Explorer Pro

### What does Chess Openings Explorer Pro do?

This app allows you to explore a vast dictionary of chess openings and their variations. You can study Grandmaster games associated with each opening, test your knowledge with quizzes, and analyze positions using a powerful built-in chess engine.

### What are the main features of this app?

Key features include a complete dictionary of chess openings, access to over 2 million Grandmaster games, various quiz modes to test your knowledge, accurate statistics for each position, a powerful built-in chess engine for analysis, and the ability to export games in PGN format.

### How much does Chess Openings Explorer Pro cost?

The application is a paid app. There are no in-app purchases or advertisements mentioned, indicating a one-time purchase for full access to its features.

### What are the use cases for this app?

This app is ideal for chess players who want to deepen their understanding of opening theory, practice recognizing and playing specific openings, and analyze their own or others' games to identify strengths and weaknesses in the opening phase.

### Is this app available on multiple platforms?

The provided data does not specify compatibility with different operating systems (e.g., iOS, Android). However, it is described as a mobile application, suggesting it is designed for smartphones and tablets.

## Version history (last 5 releases)

### 1.11 — 2020-04-12

Improved dark mode support

### 1.10 — 2020-04-05

Multiple bugfixes

### 1.08 — 2018-12-17

- Games can now be bookmarked
- New quiz mode: Find the moves of a given opening
- Multiple bugfixes
- iOS 12 compatibility update

### 1.06 — 2018-09-06

- The game list can now be sorted by result
- New button to replay the last variation you played
- Sounds should now work properly
- Multiple bugfixes
- Privacy policy update

### 1.05 — 2018-06-12

Improved Quiz mode
Bugfixes and performance improvements

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## More apps by Emmanuel Mathis

- [Tsumego Pro (Go problems)](https://appshunter.io/ios/app/tsumego-pro-go-problems/id892041876)
- [Chess Tactics Pro (Puzzles)](https://appshunter.io/ios/app/chess-tactics-pro-puzzles/id903380719)
- [Cube Link: Connect the Dots 3D](https://appshunter.io/ios/app/cube-link-connect-the-dots-3d/id979542745)
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- [Word Search Hexagons](https://appshunter.io/ios/app/word-search-hexagons/id1066264742)

All apps by Emmanuel Mathis: https://appshunter.io/developer/892041879

## Related topics

[chess openings explorer pro](https://appshunter.io/ios/topics/chess-openings-explorer-pro) · [openings](https://appshunter.io/ios/topics/openings) · [chess openings study](https://appshunter.io/ios/topics/chess-openings-study) · [learn chess openings](https://appshunter.io/ios/topics/learn-chess-openings)

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*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 2026-08-25.*