Comparison

Serendipity Chess vs Chess Pro Trainer™

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

Head to head
About

Serendipity Chess

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This variant is similar to standard chess. All the chessmen is the same as standard chess’ rules. The only one objective in this game is to locate the real opponent King and capture him. No matter how strong a chess player your opponents are in standard Chess Game, this game will make thing interesting so that you can stand a chance of victory! This is a true fair game.

About

Chess Pro Trainer™

This app enhances tactical vision and calculation in chess through realistic in-game simulations. It teaches players when and how to spot tactical opportunities, unlike traditional puzzle apps. Features include an advanced move evaluation system and various training modules for different aspects of tactical play.

Highlights
  • Realistic in-game tactical simulation
  • Advanced Alternate Acceptable Move system
  • Tactics Recognition Training
  • Genius Training for aggressive play
  • Checks and Coordinated Squares Training
  • Unprotected Pieces Training
  • Stockfish-powered Analysis Board
Features
Read full description

Are you able to solve chess puzzles but struggle to find those same tactics in your own games? Or are you simply looking to improve your tactical awareness? Then Chess Pro Trainer is for you. Chess Pro Trainer is unlike any chess training app available today. It is designed to improve your tactical vision, calculation, pattern recognition, and overall chess strength through realistic in-game simulation training. Most puzzle apps teach you HOW to solve tactics. Chess Pro Trainer teaches you HOW and WHEN to look for them. In traditional puzzle apps, you know a tactic exists before you make your first move. In real games, nobody tells you a tactic is there. Chess Pro Trainer recreates that experience by presenting positions from real games where tactical opportunities may appear immediately or several moves later. This creates a realistic training environment that directly improves practical over-the-board and online play. The app also features an advanced Alternate Acceptable Move system. Rather than simply marking moves right or wrong, users can earn credit for finding Valid, Equal, or even Better moves than those played in the original game. This rewards creativity, strong decision-making, and deeper calculation. CORE TRAINING MODULES • Tactics Recognition Training Train both tactical awareness and tactical calculation through a unique two-phase training system. • Genius Training Develop attacking instincts through aggressive sacrifice positions and high-level tactical play. • Checks Training Master the ability to identify every possible check in a position. • Coordinated Squares Training Learn to recognize key action squares that often serve as the foundation of powerful tactics. • Unprotected Pieces Training Develop the ability to identify vulnerable pieces using a deeper definition of what "unprotected" truly means. ADDITIONAL FEATURES • Stockfish-powered Analysis Board • Global Leaderboards • Detailed Statistics Tracking • Multiple Difficulty Levels • Board Themes and Sound Customization • Learning Coordinates Module • Random Position Generator • Regular Content Updates Whether you are a beginner or an advanced player, Chess Pro Trainer provides a focused and efficient way to improve your chess skills through realistic tactical training. This is not just another puzzle app. This is a complete tactical training system. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Serendipity Chess4 screens
Chess Pro Trainer™4 screens

Verdict

The call

The clearest difference is in-app purchases: Serendipity Chess at none against Chess Pro Trainer™'s 5. Chess Pro Trainer™'s advantage is update cadence (every 3 days vs every 3 weeks) and iOS requirement (15.0 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chess Pro Trainer™ sells 5 in-app purchases, starting at $2.99 per month. Serendipity Chess asks for nothing beyond the download.

UpkeepUpdate frequency

Serendipity Chess ships an update every 3 weeks, Chess Pro Trainer™ every 3 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Serendipity Chess versus Chess Pro Trainer™: the parameters behind the verdict, then further details
ParameterSerendipity ChessChess Pro Trainer™
PriceFreeFree
Rating—5.0 (15 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—15 — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.0 — better
Further details — not scored
Size67 MB474 MB
Age rating4+4+
DeveloperMingo LamChess With Coach Mark, LLC.

In-app purchases

None

Serendipity Chess

No in-app purchases

5 purchases

Chess Pro Trainer™

Subscriptions2
  • Pro Monthly$2.991 Month
  • Pro Annual$29.991 Year
One-time3
  • Pro Lifetime1$99.99
  • Pro Lifetime 2 Licenses$149.99
  • Pro Lifetime4$199.99

Questions

Is Serendipity Chess free?
Serendipity Chess is free to download, with no in-app purchases.
Is Chess Pro Trainer™ free?
Chess Pro Trainer™ is free to download, with in-app purchases available.
Do Serendipity Chess or Chess Pro Trainer™ have ads?
Neither Serendipity Chess nor Chess Pro Trainer™ shows ads.
Which is updated more often, Serendipity Chess or Chess Pro Trainer™?
Serendipity Chess ships an update every 3 weeks, and Chess Pro Trainer™ every 3 days. Most recently, Serendipity Chess was updated on October 25, 2026 and Chess Pro Trainer™ on October 31, 2026.

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