Comparison

Openings Mastermind vs Chess Notation Trainer Pro

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

Chess Notation Trainer Pro

Features
Read full description

Serious about chess? But struggling to identify the squares, remembering sequences and following notations? Well, you just landed on the perfect app! This training app is designed to dramatically uplift your mastery over chess squares. There are 5 training sessions. A small dose of regular practice will make you: 1. Spot a square as soon as you hear/see its coordinate 2. Translate a sequence of moves into their notation at ease 3. Immediately identify the color of a square 4. Stay oriented regardless of you facing white or black 5. Follow along with chess tutorials, books or any discussion without a board 6. Massively speedup your thought process on any calculation 7. Finally, start playing blind chess! There are well thought out features everywhere, like different time controls for training, untimed practice mode, hints and tips during gameplay, achievements and milestones, global leaderboards and a complete visualization of your records. Don't be surprised if you see a sudden surge of rating simply increasing your strength on square reading. This is a beautiful and satisfyingly addictive way to your square mastery. Caution: If you are rated below 1500, this app is probably not gonna be as useful for you, and tactics training is something you should prioritize.

Screenshots

Openings Mastermind4 screens
Chess Notation Trainer Pro4 screens

Verdict

The call

The clearest difference is price: Openings Mastermind at Free against Chess Notation Trainer Pro's $4.99. Chess Notation Trainer Pro's advantage is update cadence (every 6 days vs fortnightly). On ads, in-app purchases, device support and iOS requirement 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

Openings Mastermind is free to download; Chess Notation Trainer Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Openings Mastermind ships an update fortnightly, Chess Notation Trainer Pro every 6 days. The most recent releases landed on September 19, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
Openings Mastermind versus Chess Notation Trainer Pro: the parameters behind the verdict, then further details
ParameterOpenings MastermindChess Notation Trainer Pro
PriceFree — better$4.99
Rating4.3 (6 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings6 — better—
Update frequencyFortnightlyEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.618.6
Further details — not scored
Size88 MB26 MB
Age rating4+4+
DeveloperChristian HeiseNishat Majid

In-app purchases

None

Openings Mastermind

No in-app purchases

None

Chess Notation Trainer Pro

No in-app purchases

Questions

Is Openings Mastermind free?
Openings Mastermind is free to download, with no in-app purchases.
Is Chess Notation Trainer Pro free?
Chess Notation Trainer Pro costs $4.99, with no in-app purchases.
Do Openings Mastermind or Chess Notation Trainer Pro have ads?
Neither Openings Mastermind nor Chess Notation Trainer Pro shows ads.
Which is updated more often, Openings Mastermind or Chess Notation Trainer Pro?
Openings Mastermind ships an update fortnightly, and Chess Notation Trainer Pro every 6 days. Most recently, Openings Mastermind was updated on September 19, 2026 and Chess Notation Trainer Pro on September 7, 2026.

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