Comparison

Openit vs Calvin Chess Trainer

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

Head to head
About

Openit

Learn chess openings through interactive play and guided lessons. This app offers a gamified approach to understanding and memorizing opening moves, with modes for learning and practice. Sharpen your chess strategy from the first move.

Highlights
  • Interactive opening library
  • Coach-guided explanations
  • Gamified progression with streaks
  • Practice mode for reinforcement
  • Learn popular chess openings
Features
Read full description

Openit makes learning chess openings fun, fast, and effective. Forget rote memorization. With Openit, you play, interact, and truly understand openings step by step, guided by a friendly in-app coach. Learn Mode • Choose from a growing library of openings • Explore interactive lines directly on the board • Get clear, simple explanations for every move • Keep your daily streak Practice Mode • Train without hints by playing the correct responses • Strengthen memory and pattern recognition Whether you’re rated 600 or 2000 Elo, Openit provides structured, gamified training to sharpen your play from move one. Key Features • Popular openings like the Vienna Gambit, French Defense, Italian Game, and more • Gamified progression with streaks • Coach-guided learning with simple, practical tips • Practice mode to test and reinforce your knowledge Spend just 5 minutes a day, turn your openings into a weapon, and start winning games earlier. Terms of Service: https://www.louisraffin.com/openit/terms-of-service Privacy Policy: https://www.louisraffin.com/openit/privacy-policy

About

Calvin Chess Trainer

Features
Read full description

Master the chessboard from the ground up! Calvin Chess Trainer turns board fundamentals into engaging, hands-on drills designed for young learners. Chess Notation Trainer Learn files, ranks, and square names by tapping the board. Three modes let you progress at your own pace: Explore to discover, Practice to build confidence, and Speed Round to test your skills under a 30-second timer. Hear every square spoken aloud as you tap, reinforcing coordinate recognition through sight and sound. Move Trainer Read standard chess notation and find the correct move on an interactive board. Drag and drop pieces to solve 500 curated puzzles from the Lichess database. Incorrect? An arrow shows you where the piece should have gone so you learn from every attempt. Chess Vision Drills Build board visualization skills with four unique drills: Forks & Skewers — find the square where a piece attacks two targets at once Knight Sight — locate all squares a knight can reach in one jump Knight Flight — navigate a knight to a target in the fewest moves Pawn Attack — guide a piece through a field of enemy pawns to the other side Built for Kids Audio feedback on every tap — files, ranks, and piece names spoken clearly Streak counter with milestone celebrations at 5, 10, 15, and 20 Personal best tracking across every drill, mode, and difficulty Hard Mode flips the board to black's perspective for an extra challenge 25+ board themes and 28 piece sets to make it your own No ads. No in-app purchases. Just chess. Whether your child is just learning the names of the squares or sharpening their tactical vision, Calvin Chess Trainer makes every drill feel like a game. From Internut Education.

Screenshots

Openit4 screens
Calvin Chess Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: Calvin Chess Trainer at none against Openit's 2. On price, update cadence, 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. Openit sells 2 in-app purchases, starting at $2.99 per month. Calvin Chess Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Openit ships an update weekly, Calvin Chess Trainer every 5 days. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.

Scorecard1 real difference · 9 level
Openit versus Calvin Chess Trainer: the parameters behind the verdict, then further details
ParameterOpenitCalvin Chess Trainer
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size137 MB215 MB
Age rating4+4+
DeveloperLouis RaffinDAVID MARKLE

In-app purchases

2 purchases

Openit

Subscriptions2
  • Openit Pro Monthly$2.991 Month
  • Openit Pro Annual7 Days trial$14.991 Year
None

Calvin Chess Trainer

No in-app purchases

Questions

Is Openit free?
Openit is free to download, with in-app purchases available.
Is Calvin Chess Trainer free?
Calvin Chess Trainer is free to download, with no in-app purchases.
Do Openit or Calvin Chess Trainer have ads?
Neither Openit nor Calvin Chess Trainer shows ads.
Which is updated more often, Openit or Calvin Chess Trainer?
Openit ships an update weekly, and Calvin Chess Trainer every 5 days. Most recently, Openit was updated on September 21, 2026 and Calvin Chess Trainer on September 15, 2026.

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