# Chess Reps

> An app to manage and train your chess openings.

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

## Overview

- **ID:** `com.jonasmayer.openingmanager`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Jonas Mayer
- **Category:** GAME\_BOARD
- **Downloads:** 14,934
- **Rating:** 4.30 / 5 (93 ratings)
- **Version:** VARY
- **Last updated:** 2021-01-08
- **First published:** 2017-08-30
- **Publisher country:** DE
- **Data as of:** 2026-09-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.jonasmayer.openingmanager)
- **Website:** [https://chessreps.app](https://chessreps.app/)
- **Privacy policy:** [https://chessreps.app/compliancetos.html](https://chessreps.app/compliancetos.html)

## Description

**Chess Reps** is a powerful Chrome extension designed for chess enthusiasts who want to master their opening repertoire. Easily add openings, either directly on the board or by importing PGN files, and keep track of all your favorite variations. The Omniscient Knight feature identifies gaps in your repertoire so you can work on them efficiently.

With Google sign-in, synchronize your repertoire across multiple devices seamlessly. Share your openings with friends through PGN or JSON export. Train your openings with interactive modes that test your memory and track your progress with detailed statistics and weekly reports.

Additional features include integration with Stockfish 11 for position analysis, access to a comprehensive opening database to identify popular moves, and flexible training modes that allow sorting positions sequentially, by score, or randomly. Chess Reps also supports transposing between openings and adding comments to individual positions, making it an all-in-one tool for improving your chess openings.

## Rankings

- #485,147 — Overall

## Review summary

### Pros

- Allows for unlimited training of openings
- Ability to choose starting positions for repertoire
- Unique feature to create an opening tree
- Good potential for future improvements
- Generally works well
- Active updates

### Cons

- Not user-friendly with a lack of instructions
- Crashes upon launching after the latest update
- Missing features like board customization, labels, and organization
- Training function freezes and is not responsive
- Buggy logic for moving through repertoire variations

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