Comparison

ChessScan vs Chess Clock

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

Head to head
About

ChessScan

Instantly digitize handwritten chess scoresheets using AI-powered OCR. Photograph your scoresheet after a game to convert it into PGN notation for review, analysis, and sharing. Includes interactive board review and Stockfish engine analysis.

Highlights
  • AI-powered OCR for handwritten moves
  • Multi-page scoresheet support
  • Interactive board with move-by-move review
  • Stockfish engine analysis
  • PGN export and import
  • Cloud sync across devices
  • Game sharing via link or QR code
Read full description

ChessScan instantly digitizes your handwritten chess scoresheets using AI-powered OCR. Simply photograph your scoresheet after a tournament game and ChessScan converts it into standard PGN notation — ready to review, analyze, and share. How It Works Scan your scoresheet with your iPhone camera AI reads your handwriting and extracts every move Review moves on an interactive chess board Get Stockfish engine analysis for every position Save, export, or share your game Powerful Features • AI-Powered OCR — Accurately reads handwritten moves from all standard scoresheet formats • Multi-Page Support — Scan scoresheets that span multiple pages and combine them into a single game • Interactive Board — Step through your game move by move on a full chess board with piece animations • Stockfish Analysis — See the best move for every position with real-time engine evaluation • Move Validation — Automatic detection of illegal or ambiguous moves with easy correction tools • Game Annotations — Add voice or text commentary to any move for coaching or personal review • PGN Export — Copy or share your game in standard PGN format compatible with Lichess, Chess.com, and all major platforms • Cloud Sync — Your games are saved securely and accessible across devices • Game Sharing — Share games with friends, students, or coaches via link or QR code • PGN Import — Import existing PGN files to review and analyze Subscription Plans • Free — 10 scans per year, 2 saved games • Standard — 100 scans per year, 50 saved games, cloud sync • Premium — Unlimited scans, unlimited storage, all features ChessScan is built for tournament players, chess coaches, and anyone who plays over-the-board chess. Stop losing your game history — digitize every scoresheet and build your personal chess library. Get instant analysis of your tournament game without need to export to Chess.com or Lichess. Share your analysis and annotations with easily with your opponent, coach, or mentor. Privacy: Your games are stored securely using Firebase. We do not sell or share your personal data. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://chessscan.app/privacy.html

About

Chess Clock

Features
Read full description

Chess Clock is a distraction-free dual timer for over-the-board games. Pick a time control, tap your side after each move — that's it. Works fully offline, no account needed. Free presets play a complete game; Chess Clock Pro unlocks custom time controls, extra presets, and themes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ChessScan4 screens
Chess Clock4 screens

Verdict

The call

ChessScan and Chess Clock are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. ChessScan sells 4 in-app purchases, starting at $4.99 per month and Chess Clock sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
ChessScan versus Chess Clock: the parameters behind the verdict, then further details
ParameterChessScanChess Clock
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequency—Fortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS26.0 — better26.1
Further details — not scored
Size18 MB18 MB
Age rating4+4+
DeveloperEugene ChanNaveen Mathivanan

In-app purchases

4 purchases

ChessScan

Subscriptions4
  • ChessScan Standard$4.991 Month
  • ChessScan Premium$7.991 Month
  • ChessScan Standard (Annual)$39.991 Year
Show 1 more
  • ChessScan Premium (Annual)$59.991 Year
3 purchases

Chess Clock

Subscriptions2
  • Chess Clock Pro Monthly$1.991 Month
  • Chess Clock Pro Annual3 Days trial$9.991 Year
One-time1
  • Chess Clock Pro Lifetime$14.99

Questions

Is ChessScan free?
ChessScan is free to download, with in-app purchases available.
Is Chess Clock free?
Chess Clock is free to download, with in-app purchases available.
Do ChessScan or Chess Clock have ads?
Neither ChessScan nor Chess Clock shows ads.

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