Comparison

Blunderzone vs Learn Chess Openings with Cat

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

Head to head
About

Blunderzone

Features
Read full description

Turn your chess mistakes into focused practice with Blunderzone. Connect Lichess or Chess.com, review your games, and train the positions where you missed a better move. • Game Tactics: puzzles from your own games. • Quick Tactics: short sessions of 10 puzzles. • Memory Training: revisit positions with spaced repetition. • AI explanations: understand mistakes and better continuations in your account language. • Track your progress, training streaks and game statistics. • Optional reminders help you keep a training routine. Choose from 20 interface languages. Free, Basic and Premium plans offer different game import, analysis and AI explanation allowances. Paid memberships are optional; prices are shown in the app before purchase. • 20 AI explanations / 100 AI explanations. One-time purchase. Credits never expire and are shared across your devices. One credit unlocks one new explanation. Privacy Policy: https://blunder.zone/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Learn Chess Openings with Cat

Features
Read full description

Learn Chess Openings with Cat is a friendly chess opening trainer designed for beginners who want to understand openings, not just memorize moves. A cute cat guide explains the ideas behind each move, helping you learn why the move matters, what square it controls, and what plan each side is aiming for. Learn Chess Openings with Cat is a friendly chess opening trainer designed for beginners who want to understand openings, not just memorize moves. A cute cat guide explains the ideas behind each move, helping you learn why the move matters, what square it controls, and what plan each side is aiming for. You can study popular chess openings step by step, then test yourself by choosing the correct moves on the board. Both White-side and Black-side practice are supported, so you can learn the same opening from both perspectives. Features: - Learn popular chess opening lines - Cat-style commentary for beginners - Practice as White or Black - Learning mode and test mode - Tap or drag pieces to move - Highlighted squares for easier understanding - Progress tracking for each opening - 3-lives test mode for repeat practice - Japanese and English language support - Free openings included, with optional paid unlocks Included openings: Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation Indian Game: Queen’s Gambit Declined, Tartakower Defense Open Game: Ruy Lopez, Closed, Chigorin Defense Semi-Slav Defense: Anti-Moscow Gambit French Defense: Winawer Variation, Warsaw Variation Caro-Kann Defense: Advance Variation, Short Variation English Opening: Agincourt Defense, Neo-Catalan Declined King’s Indian Attack: Yugoslav Variation Scandinavian Defense: Main Line, Mieses Variation Pirc Defense: Austrian Attack, Weiss Variation This app is ideal if: You are new to chess openings You often forget opening moves You want to understand the purpose behind each move You want to practice both White and Black plans You prefer a calm, simple, and friendly learning experience Start with the free openings and build your opening knowledge one move at a time. References Kasparov, Garry, and Raymond Keene. Batsford Chess Openings 2. 1989. ISBN 0-8050-3409-9. Nunn, John, Graham Burgess, John Emms, and Joe Gallagher. Nunn’s Chess Openings. 1999. ISBN 1-8574-4221-0. Panov, Vasily. Teoría de Aperturas, Tomo I: Aperturas Abiertas - Aperturas Semiabiertas. 1973. ISBN 84-270-0132-0. Schiller, Eric. Standard Chess Openings. 2002. ISBN 1-58042-048-6. de Firmian, Nick. Modern Chess Openings. 15th ed., Random House, 2008. ISBN 0-8129-3682-5.

Screenshots

Blunderzone4 screens
Learn Chess Openings with Cat4 screens

Verdict

The call

The clearest difference is iOS requirement: Learn Chess Openings with Cat at 13.0 against Blunderzone's 15.0. On price, update cadence, ads and in-app purchases 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. Blunderzone sells 4 in-app purchases, starting at $3.99 per month and Learn Chess Openings with Cat sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Blunderzone ships an update fortnightly, Learn Chess Openings with Cat every 2 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 5 level
Blunderzone versus Learn Chess Openings with Cat: the parameters behind the verdict, then further details
ParameterBlunderzoneLearn Chess Openings with Cat
PriceFreeFree
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size185 MB29 MB
Age rating4+4+
DeveloperRANKA s.r.o.REBRON

In-app purchases

4 purchases

Blunderzone

Subscriptions2
  • Blunderzone Basic$3.991 Month
  • Blunderzone Premium$6.991 Month
One-time2
  • 20 AI explanations$4.00
  • 100 AI explanations$18.00
8 purchases

Learn Chess Openings with Cat

One-time8
  • Popular No.4 Semi-Slav Defense$1.99
  • Popular No.5 French Defense$1.99
  • Popular No.6 Caro-Kann Defense$1.99
Show 5 more
  • Popular No.7 English Opening$1.99
  • Popular No.8 King’s Indian Attack$1.99
  • Popular No.9 Scandinavian Defense$1.99
  • Popular No.10 Pirc Defense$1.99
  • Unlock All Openings$7.99

Questions

Is Blunderzone free?
Blunderzone is free to download, with in-app purchases available.
Is Learn Chess Openings with Cat free?
Learn Chess Openings with Cat is free to download, with in-app purchases available.
Do Blunderzone or Learn Chess Openings with Cat have ads?
Neither Blunderzone nor Learn Chess Openings with Cat shows ads.
Which is updated more often, Blunderzone or Learn Chess Openings with Cat?
Blunderzone ships an update fortnightly, and Learn Chess Openings with Cat every 2 weeks. Most recently, Blunderzone was updated on October 25, 2026 and Learn Chess Openings with Cat on October 28, 2026.

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