# Chess Openings Trainer vs Openings Mastermind

The clearest difference is in-app purchases: Openings Mastermind at none against Chess Openings Trainer's 1. Openings Mastermind also leads on rating (4.3 vs 3.9). Chess Openings Trainer's advantage is iOS requirement (15.0 vs 18.6). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Chess Openings Trainer sells 1 one-off in-app purchase. Openings Mastermind asks for nothing beyond the download.

Openings Mastermind holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 17 and 6 respectively. Written reviews complicate that: 57% of Chess Openings Trainer's written reviews are positive against 50% of Openings Mastermind's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Chess Openings Trainer | Openings Mastermind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (17 ratings)](https://appshunter.io/ios/app/chess-openings-trainer/id1602995561/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews)** |
| Number of ratings | **17** | 6 |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 22 MB | 88 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piero Toffanin](https://appshunter.io/developer/327733893) | [Christian Heise](https://appshunter.io/developer/1632898424) |

## What reviewers say

### Chess Openings Trainer

[App page](https://appshunter.io/ios/app/chess-openings-trainer/id1602995561)

Master chess openings with an intuitive interface and a vast database of strategies. Practice against an AI, explore variations, and gain confidence in your gameplay.

**Highlights:** Database of over 3,000 openings, 500 opening descriptions, Intuitive interface, Practice against AI, Stockfish engine evaluation

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $6.99 | one-time |


### Openings Mastermind

[App page](https://appshunter.io/ios/app/openings-mastermind/id6448386251)

Master chess openings with this app. Import studies, explore with advanced engines, and practice specific lines through repetition. Track your progress and improve your game.

**Highlights:** Import Lichess Studies or PGNs, Explore openings with Stockfish 15, Practice openings by repetition, Smart practice queue, Track learning progress

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Openings Trainer free?

Chess Openings Trainer is free to download, with in-app purchases available.

### Is Openings Mastermind free?

Openings Mastermind is free to download, with no in-app purchases.

### Which has better reviews, Chess Openings Trainer or Openings Mastermind?

Openings Mastermind is rated higher. Chess Openings Trainer averages 3.9 out of 5 from 17 ratings, while Openings Mastermind averages 4.3 from 6 ratings.

### Do Chess Openings Trainer or Openings Mastermind have ads?

Neither Chess Openings Trainer nor Openings Mastermind shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*