# Openings Mastermind vs OpenChess

The clearest difference is rating: OpenChess at 5.0 against Openings Mastermind's 4.3. OpenChess also leads on iOS requirement (12.0 vs 18.6). Openings Mastermind's advantage is in-app purchases (none vs 10) and ratings volume (6 vs 2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OpenChess sells 10 one-off in-app purchases. Openings Mastermind asks for nothing beyond the download.

OpenChess holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Openings Mastermind | OpenChess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 57 MB |
| Requires iOS | 18.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Christian Heise](https://appshunter.io/developer/1632898424) | [David Bryant](https://appshunter.io/developer/1559648957) |

## What reviewers say

### 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


### OpenChess

[App page](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904)

Master chess openings by playing against a specialized AI. Explore specific defenses or move sequences, and gain insights into positional advantages and piece values. Improve your game from the very first moves.

**Highlights:** Learn specific chess openings, Play against AI focused on opening lines, Analyze positional advantages, Evaluate piece values and mobility, Understand pawn structure, Track defended and attacked pieces

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tarrasch Defense Opening | $0.99 | one-time |
| Trompowsky Attack Opening | $0.99 | one-time |
| Scandinavian Defense Opening | $0.99 | one-time |
| Three Knights Opening | $0.99 | one-time |
| Zukertort Opening | $0.99 | one-time |
| Van't Kruijs Opening | $0.99 | one-time |
| Vienna Game Opening | $0.99 | one-time |
| Ware Opening | $0.99 | one-time |
| Opening Explorer | $4.99 | one-time |
| OpenChess Premium | $19.99 | one-time |


## Frequently asked questions

### Is Openings Mastermind free?

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

### Is OpenChess free?

OpenChess is free to download, with in-app purchases available.

### Which has better reviews, Openings Mastermind or OpenChess?

OpenChess is rated higher. Openings Mastermind averages 4.3 out of 5 from 6 ratings, while OpenChess averages 5.0 from 2 ratings.

### Do Openings Mastermind or OpenChess have ads?

Neither Openings Mastermind nor OpenChess shows ads.

### Which is updated more often, Openings Mastermind or OpenChess?

Openings Mastermind ships an update fortnightly, and OpenChess fortnightly. Most recently, Openings Mastermind was updated on October 24, 2026 and OpenChess on October 15, 2026.

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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.*