Comparison

Openings Mastermind vs GPT Chess

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Openings Mastermind

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
Read full description

Get ready to take your chess game to the next level with Openings Mastermind, the ultimate chess opening app! Some of the features include: - Import Lichess Studies or custom PGNs - Explore openings with Stockfish 17 and the Lichess position database - Practice openings by repetition against your own custom openings database - Take advantage of the smart practice queue and improve your learning - Observe your learning progress in different openings With our app, you can take your opening game to the next level by practicing against the specific lines you want to master. Whether you're a beginner or an experienced player, our app is the perfect tool to help you improve your opening moves and become a better chess player. Planned Features: - Continue against engine, after study line ends - Analysis of your games from Lichess and Chess.com compared to your openings database

About

GPT Chess

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
Read full description

Play Chess with ChatGPT (OpenAI, GPT 3.5 or GPT 4) or GeminiPro (Google). There are two modes: (A) The standard mode, both you and the AI would follow the standard chess rule, so no illegal move! You can choose between: 1. The native ChatGPT4 API (weakest chess player); 2. Prompt improved GPT4 API (e.g. better chess player); 3. Enhanced backend chess calculation API call with GPT4 (i.e. strongest chess player). (B) The No-Rule chess mode.  In this mode, we strictly follow the instruction provided by ChatGPT AI to make the move. Enjoy a chaotic and hilarious chess game. Don't be surprise if AI makes illegal moves, captures its own piece, generates random pieces, and suicides. :) You can choose different LLM AI: 1. GPT 3.5 (OpenAI); 2. GPT 4 (OpenAI); 3. Gemini Pro from Google. A minimalist design, just start to play, that simple. Also, the ChatGPT will talk to you during the play! Come and see if you can beat the ChatGPT in chess! Link to standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: http://lwdevstudio.github.io/privacy-info.html

Screenshots

Openings Mastermind4 screens
GPT Chess3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Openings Mastermind versus GPT Chess: the parameters behind the verdict, then further details
ParameterOpenings MastermindGPT Chess
PriceFreeFree
Rating4.3 (6 ratings) — better4.1 (16 ratings)
Positive reviews50.0% of reviews — better33.3% of reviews
Number of ratings616 — better
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.616.0 — better
Further details — not scored
Size88 MB88 MB
Age rating4+4+
DeveloperChristian HeiseFusionX Tech LLC

Customer experience

Openings Mastermind

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

GPT Chess

All ratings16 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews6 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

In-app purchases

None

Openings Mastermind

No in-app purchases

1 purchases

GPT Chess

Subscriptions1
  • Unlimited APIs3 Days trial$1.991 Month

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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