Comparison

Chess Opener PRO vs Interactive Chess Books

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

Head to head
About

Chess Opener PRO

Master chess openings with a comprehensive trainer and explorer. Analyze grandmaster repertoires, build your own opening lines, and memorize variations with interactive training. Works offline with no ads.

Highlights
  • Chess opening tree with statistics
  • Encyclopedia of Chess Openings (ECO)
  • Grandmaster repertoire database
  • Stockfish engine analysis
  • Interactive opening trainer
  • Build and manage opening repertoire
  • PGN import/export
Features
Read full description

Features: - Chess opening tree with game statistics - The Encyclopedia of Chess Openings (ECO) - Database of top 100+ grandmasters’ repertoires - Stockfish chess engine analysis - Compare ECO, opening tree and engine moves side by side in any position - Import and export chess openings in PGN format - Build your own opening repertoire - Add or edit comments on moves - Automatically classify any sequence of moves using the ECO system - Chess opening explorer highlights moves already in your repertoire - Chess database includes all transpositions - Interactive trainer to memorize your chess openings and variations - Train multiple variations at once against random opponent moves from your repertoire - Set up a starting position for training - Track your training progress - Customize chessboard colors and chess pieces - Supports dark mode - No ads - Works completely offline CHESS OPENING EXPLORER Search in the Encyclopedia of Chess Openings, browse the chess opening tree, explore the opening repertoires of famous chess grandmasters, or ask the chess engine to find the best moves. Swipe left or right to switch between the exploration features in any position. BUILD YOUR OPENING REPERTOIRE Add your favorite opening lines to your repertoire using the chess opening explorer or import your openings in PGN format from other chess programs. You can always edit the names of your openings and organize them in your repertoire. OPENING TRAINER A simple and efficient method to memorize variations of openings in your repertoire. You can train either white’s moves or black’s moves only or both. Optionally, you can train all variations at once. The trainer chooses the opponent’s moves randomly from your opening repertoire. Chess Opener tracks your progress and shows your stats.

About

Interactive Chess Books

This app offers interactive lessons, tutorials, and practice exercises to help beginners and intermediate players improve their chess skills. It features a user-friendly interface with clear instructions, helpful tips, and engaging challenges to make learning fun and effective.

Highlights
  • Interactive lessons
  • Tutorials
  • Practice exercises
  • User-friendly interface
  • Helpful tips and tricks
  • Engaging challenges and quizzes
Features
Read full description

Welcome to my chess instruction mobile app, the perfect tool for both beginner and intermediate chess players who want to improve their skills and take their game to the next level. Chess is a game that has fascinated people for centuries, and with the advent of modern technology, it has never been easier to learn and play the game. My app is designed to provide a comprehensive and interactive learning experience that covers all aspects of the game, from the basics of chess rules and strategies to advanced techniques used by experienced players. Whether you are a beginner who is just starting to learn the game or an intermediate player who wants to sharpen your skills, my app provides a range of features to help you improve your game. From interactive lessons and tutorials to practice exercises, my app has everything you need to take your chess skills to the next level. I have designed my app with a user-friendly interface that makes it easy to navigate and use, regardless of your experience level. With clear and concise instructions, helpful tips and tricks, and engaging challenges and quizzes, my app provides a fun and interactive way to learn and master the game of chess. So whether you want to learn the game from scratch or improve your existing skills, my chess instruction mobile app is the perfect companion to help you achieve your goals. Download it today and take the first step towards becoming a better chess player!

Screenshots

Chess Opener PRO4 screens
Interactive Chess Books4 screens

Verdict

The call

The clearest difference is price: Interactive Chess Books at Free against Chess Opener PRO's $8.99. Interactive Chess Books also leads on rating (5.0 vs 4.4) and review sentiment (100% vs 76%). Chess Opener PRO's advantage is ratings volume (80 vs 2) and update cadence (every 5 weeks vs every 4 months). 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

Interactive Chess Books is free to download; Chess Opener PRO costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Interactive Chess Books holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Chess Opener PRO has 80 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 76% of Chess Opener PRO's written reviews are positive against 100% of Interactive Chess Books's.

UpkeepUpdate frequency

Chess Opener PRO ships an update every 5 weeks, Interactive Chess Books every 4 months. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 4 level
Chess Opener PRO versus Interactive Chess Books: the parameters behind the verdict, then further details
ParameterChess Opener PROInteractive Chess Books
Price$8.99Free — better
Rating4.4 (80 ratings)5.0 (2 ratings) — better
Positive reviews75.9% of reviews100.0% of reviews — better
Number of ratings80 — better2
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size149 MB34 MB
Age rating4+4+
DeveloperStanislav BasovnikEric Tangborn

Customer experience

Chess Opener PRO

All ratings80 ratings
Positive83.8%
Neutral5.0%
Negative11.3%
Written reviews54 reviews
Positive75.9%
Neutral7.4%
Negative16.7%

Interactive Chess Books

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Chess Opener PRO

Reported bugs

6 issues
  • Invalid PGN import
  • Crashes quite often
  • Repeats same variation
  • Cannot review lines while training
  • App not functioning with iOS 16.7.4
Show 1 more
  • PGN import is tedious and doesn't support variants

Requested features

12 requests
  • Include position setting
  • Start study from a later position
  • Multiple folders for simultaneous practice
  • Option to switch between figure visibility modes (normal, queen pieces, none)
  • Blindfold practice option
Show 7 more
  • Show +1 for capturing a pawn
  • iCloud sync across devices
  • Organize repertoires (move, sort, add folders)
  • Predefine variants not to reappear during training
  • User guide or help information
  • Support for split screen
  • Fix compatibility with iOS 16.7.4

Interactive Chess Books

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Chess Opener PRO

No in-app purchases

None

Interactive Chess Books

No in-app purchases

Questions

Is Chess Opener PRO free?
Chess Opener PRO costs $8.99, with no in-app purchases.
Is Interactive Chess Books free?
Interactive Chess Books is free to download, with no in-app purchases.
Which has better reviews, Chess Opener PRO or Interactive Chess Books?
Interactive Chess Books is rated higher. Chess Opener PRO averages 4.4 out of 5 from 80 ratings, while Interactive Chess Books averages 5.0 from 2 ratings.
Do Chess Opener PRO or Interactive Chess Books have ads?
Neither Chess Opener PRO nor Interactive Chess Books shows ads.
Which is updated more often, Chess Opener PRO or Interactive Chess Books?
Chess Opener PRO ships an update every 5 weeks, and Interactive Chess Books every 4 months. Most recently, Chess Opener PRO was updated on October 29, 2026 and Interactive Chess Books on October 7, 2026.

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