# iChessOne vs Openings Mastermind

The clearest difference is review sentiment: iChessOne at 100% against Openings Mastermind's 50%. iChessOne also leads on iOS requirement (15.0 vs 18.6). Openings Mastermind's advantage is rating (4.3 vs 4.0) and update cadence (fortnightly vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Openings Mastermind holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews complicate that: 100% of iChessOne'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.

iChessOne ships an update every 6 weeks, Openings Mastermind fortnightly. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iChessOne | Openings Mastermind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/ichessone/id6447067426/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 86 MB | 88 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Janusz Lisowski](https://appshunter.io/developer/1680192609) | [Christian Heise](https://appshunter.io/developer/1632898424) |

## What reviewers say

### iChessOne

[App page](https://appshunter.io/ios/app/ichessone/id6447067426)

Experience traditional chess with a smart electronic board. Play online, train with AI, analyze games, and customize your experience with interactive LEDs. It connects the feel of physical pieces with the convenience of modern software for an enhanced chess ecosystem.

**Highlights:** Play online on a real chessboard, Offline play and Stockfish training, Game analysis and PGN export, Interactive LED support, Advanced personalization settings, Board management and firmware updates, Reliable wireless Bluetooth connection

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

**In-app purchases:** none


### 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 iChessOne free?

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

### Is Openings Mastermind free?

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

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

Openings Mastermind is rated higher. iChessOne averages 4.0 out of 5 from 2 ratings, while Openings Mastermind averages 4.3 from 6 ratings.

### Do iChessOne or Openings Mastermind have ads?

Neither iChessOne nor Openings Mastermind shows ads.

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

iChessOne ships an update every 6 weeks, and Openings Mastermind fortnightly. Most recently, iChessOne was updated on June 1, 2026 and Openings Mastermind on September 19, 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.*