# Chess Openings Explorer Pro

> Study & improve your openings

Canonical page: [https://chrome-stats.com/d/id1083431778](https://chrome-stats.com/d/id1083431778)

## Overview

- **ID:** `id1083431778`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Emmanuel Mathis
- **Category:** Puzzle
- **Rating:** 4.60 / 5 (350 ratings)
- **Version:** 1.11
- **Last updated:** 2020-04-12
- **First published:** 2018-04-22
- **Size:** 40 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/chess-openings-explorer-pro/id1083431778)
- **Website:** [http://lr-studios.net](http://lr-studios.net/)
- **Privacy policy:** [http://lr-studios.net/privacy](http://lr-studios.net/privacy)

## Description

Chess Openings Explorer Pro helps you study and improve your openings by providing a vast database of over 10,000 openings and more than 2 million Grandmaster games. It surfaces win rates and other statistics to help you compare lines and measure progress.

For example, it shows practical insights such as how Black's results shift when facing 1.e4 with a Sicilian (1...c5) versus an Open Game (1...e5), illustrating the value of data-driven opening choices.

## Rankings

- #84,267 — Overall
- #29 — explore

## Review summary

Users praise the app for its fast, visual openings interface and access to grandmaster games for study, plus clear move-strength insights and an affordable workflow. However, multiple reviews cite a lack of onboarding, unclear metrics, and confusing usability, along with bugs that affect game positions and lists. Overall, it’s a strong, value-conscious openings study tool that needs better guidance and bug fixes to fully realize its potential.

### Pros

- Fast, informative openings interface with instant visibility of winning moves and easy replay of grandmaster games.
- Effective study workflow: practice variations and gauge the relative strength of moves within an opening.
- Rich collection of master games tied to openings provides practical, real-game examples to study.
- Affordable and simple to use, offering good value for an opening-focused study tool.

### Cons

- Poor onboarding and guidance: no clear instructions and unclear metrics (percentages), making it hard for beginners.
- Bugs affecting reliability: games can appear in the wrong position and the game lists can freeze or stop working.
- Confusing, hard-to-follow interface without sufficient help or tutorials.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1083431778)