# Openings Mastermind vs GPT Chess

The clearest difference is in-app purchases: Openings Mastermind at none against GPT Chess's 1. Openings Mastermind also leads on review sentiment (50% vs 33%) and rating (4.3 vs 4.1). GPT Chess's advantage is iOS requirement (16.0 vs 18.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. GPT Chess sells 1 in-app purchase, starting at $1.99 per month. Openings Mastermind asks for nothing beyond the download.

Openings Mastermind holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 6 and 16 respectively. Written reviews point the same way: 50% of Openings Mastermind's written reviews are positive against 33% of GPT Chess's.

Openings Mastermind ships an update fortnightly, GPT Chess every 9 days. The most recent releases landed on September 19, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Openings Mastermind | GPT Chess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews)** | [4.1 (16 ratings)](https://appshunter.io/ios/app/gpt-chess/id6477067680/reviews) |
| Number of ratings | 6 | **16** |
| Positive reviews | **50.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 88 MB | 88 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Heise](https://appshunter.io/developer/1632898424) | [FusionX Tech LLC](https://appshunter.io/developer/1773335201) |

## 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


### GPT Chess

[App page](https://appshunter.io/ios/app/gpt-chess/id6477067680)

Engage in chess matches against advanced AI models like ChatGPT and Gemini. Choose between standard rules or a chaotic no-rule mode where AI instructions dictate gameplay. The app features conversational AI during play and offers multiple AI strength levels.

**Highlights:** Play against ChatGPT and Gemini AI, Standard chess rules mode, No-rule chess mode with AI instructions, Multiple AI strength levels, Conversational AI during gameplay, Minimalist design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited APIs | $1.99 | per month |


## Frequently asked questions

### Is Openings Mastermind free?

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

### Is GPT Chess free?

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

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

Openings Mastermind is rated higher. Openings Mastermind averages 4.3 out of 5 from 6 ratings, while GPT Chess averages 4.1 from 16 ratings.

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

Neither Openings Mastermind nor GPT Chess shows ads.

### Which is updated more often, Openings Mastermind or GPT Chess?

Openings Mastermind ships an update fortnightly, and GPT Chess every 9 days. Most recently, Openings Mastermind was updated on September 19, 2026 and GPT Chess on August 31, 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.*