Comparison

Chess Defense Trainer vs Chess9

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

Head to head
About

Chess Defense Trainer

Features
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BECOME A CHESS DEFENSE MASTER Strengthen your tactical skills with Chess Defense - the ultimate training app for chess players who want to excel at defensive strategies and puzzle-solving! SMASH MODE CHALLENGES - 3-Minute Sprint: Lightning-fast puzzle solving - 5-Minute Challenge: Deep tactical training - Survival Mode: 3 lives, endless puzzles - beat your record! INTELLIGENT TRAINING SYSTEM - Adaptive difficulty that grows with your skills - Rating system tracks your improvement - Thousands of curated defense puzzles - Personalized learning path PRACTICE WITH AI ENGINE Master real game scenarios against our sophisticated chess computer. Analyze positions, test strategies, and apply your defensive knowledge in actual play. DETAILED PROGRESS TRACKING - Monitor rating progression over time - Review complete puzzle-solving history - Compare performance with global players - Identify strengths and improvement areas PROFESSIONAL CHESS ANALYSIS Stuck on a challenging position? Access powerful engine analysis to understand key defensive concepts and learn winning techniques from masters. PERFECT FOR: - Tournament preparation and tactical training - Players wanting to improve defensive skills - Chess enthusiasts of all skill levels - Anyone seeking structured chess improvement WHY CHESS DEFENSE WORKS: - Our scientifically-designed training adapts to your skill level, ensuring optimal challenge without frustration. Each puzzle is carefully selected to build specific defensive skills that translate directly to better game results. - Join thousands of players already improving their chess through focused defense training. Whether you're preparing for your next tournament or simply want to become a stronger player, Chess Defense provides the perfect training environment. Download Chess Defense today and start mastering the art of tactical defense! Privacy Policy: https://dawikk-apps.vercel.app/ChessDefenseTrainer/privacyPolicy.html Terms of Use: https://dawikk-apps.vercel.app/ChessDefenseTrainer/termsOfUse.html

About

Chess9

Features
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Hello guys, My name is Shashwat and I made this app chess9 to play and enjoy the game for fun it has luxury board where pieces are made up of black and gold color. Please feel free to check features like Check, Checkmate, Castling, Pawn capturing to opposite board and progressing to Queen. Guys, when you play the game the opponent is meant to be very easy so everybody can learn, progress, try different moves and grow and be the best at their own pace. So definately give it a shot and keep growing and learning. Thank you!

Screenshots

Chess Defense Trainer4 screens
Chess94 screens

Verdict

The call

The clearest difference is in-app purchases: Chess9 at none against Chess Defense Trainer's 6. Chess9 also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Chess Defense Trainer sells 6 in-app purchases, starting at $2.99 per month. Chess9 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
Chess Defense Trainer versus Chess9: the parameters behind the verdict, then further details
ParameterChess Defense TrainerChess9
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.4 โ€” better17.6
Further details โ€” not scored
Size117 MB11 MB
Age rating4+17+
DeveloperDawid WrzesinskiShashwat Patel

In-app purchases

6 purchases

Chess Defense Trainer

Subscriptions3
  • Espresso Subscription$2.991 Month
  • Flat White Subscription$5.993 Months
  • Latte Subscription$7.996 Months
One-time3
  • Espresso$3.99
  • Flat White$6.99
  • Latte$9.99
None

Chess9

No in-app purchases

Questions

Is Chess Defense Trainer free?
Chess Defense Trainer is free to download, with in-app purchases available.
Is Chess9 free?
Chess9 is free to download, with no in-app purchases.
Do Chess Defense Trainer or Chess9 have ads?
Chess Defense Trainer shows ads; Chess9 does not.
Which is updated more often, Chess Defense Trainer or Chess9?
Chess Defense Trainer ships an update every 2 months, and Chess9 every 2 months. Most recently, Chess Defense Trainer was updated on November 5, 2026 and Chess9 on October 31, 2026.

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