Chess By Post vs Openings Mastermind
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chess By Post
Engage in correspondence chess with others worldwide. Challenge friends or compete in ranked matches against similarly skilled players. The app offers automatic notifications for pending moves and tracks your progress with an Elo rating system.
- Correspondence chess
- Ranked matches
- Skill-based matchmaking
- Chess puzzles
- End game analysis
- Move history explorer
- Local hand-off games
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Play correspondence chess with real people! Challenge your friends to friendly games or play ranked matches against random opponents of similar skill levels. Play as many simultaneous games as your want! Automatic push notifications will let you know when you have moves waiting! Improve your ranking by playing ranked games against comparable opponents. Skill ranking updates using the classic Elo rating system to adjust your rank when you win or lose. A leader board view shows you how you compare to the top players. Chess By Post is perfect for players of all skill levels because your matched opponent's skill level will be adapted based on your own skill level. Create a local hand-off game and play your friend by passing the phone back and forth. Play against a computer opponent that adjusts difficulty to match your skill level. Improve your skills by playing rated chess puzzles. Features: --------- -Tracks your skill level over time -Matches you with similar skilled opponents -Practice chess puzzles to improve your game -End game analysis shows you the critical mistakes made by each player -Head to head stats -Move History Statistics - Explore the moves of every game you ever played with an interactive board explorer -Freely move pieces to plan strategies -Take notes on games to remember strategies -In-game chat message board -In-game move histories for easy review -Ratings leader board -Local hand-off games can be played offline -Play games against a computer opponent with varied skill levels -Alphanumeric grid display
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.
- Import Lichess Studies or PGNs
- Explore openings with Stockfish 15
- Practice openings by repetition
- Smart practice queue
- Track learning progress
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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
Screenshots
Verdict
The clearest difference is ads: Openings Mastermind at none against Chess By Post's shown. Openings Mastermind also leads on update cadence (fortnightly vs every 6 months) and monetization model (free vs ad-supported). Chess By Post's advantage is review sentiment (80% vs 50%) and ratings volume (255 vs 6). On price, rating, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.3 for Chess By Post against 4.3 for Openings Mastermind. That said, the two scores are not equally well evidenced: Chess By Post has 255 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 80% of Chess By Post's written reviews are positive against 50% of Openings Mastermind's.
Chess By Post ships an update every 6 months, Openings Mastermind fortnightly. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | Chess By Post | Openings Mastermind |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (255 ratings) | 4.3 (6 ratings) |
| Positive reviews | 80.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 255 — better | 6 |
| Update frequency | Every 6 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 38 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Games By Post LLC | Christian Heise |
Customer experience
Chess By Post
Openings Mastermind
Bugs and requests
Chess By Post
Reported bugs
4 issues- Moves not registering correctly
- Game freezes/crashes
- Notification issues
- Rating/scoring problems
Requested features
5 requests- Shorter move time limits
- Friends/social features
- Ability to report/block abusive players
- Board orientation/view options
- Customizable game settings
Openings Mastermind
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Chess By Post
No in-app purchases
Openings Mastermind
No in-app purchases
Questions
Is Chess By Post free?
Is Openings Mastermind free?
Which has better reviews, Chess By Post or Openings Mastermind?
Do Chess By Post or Openings Mastermind have ads?
Which is updated more often, Chess By Post or Openings Mastermind?
Other comparisons
