KnightVision vs Chess Engine
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
KnightVision
This app helps chess players digitize and analyze their games. It uses AR to scan physical boards, OCR to read scoresheets, and integrates with online platforms for a comprehensive chess experience.
- AR board scanning
- Scoresheet OCR
- Live game recording
- Stockfish engine analysis
- Chess.com & Lichess import
- Tactical puzzles
- Rating tracking
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KnightVision 2.0 Your all-in-one chess companion, now with online gameplay, 2D scanning, and live broadcasts. Play, scan, record, and improve—all in one app. PLAY LIVE OR DAILY CHESS Find opponents, challenge friends, or share a challenge link. Play rated or casual Blitz and Rapid games, or choose Daily chess with 1, 2, or 3 days per move. Preview and confirm Daily moves, manage multiple games, and resume from your dashboard. SCAN BOARDS & DIAGRAMS Scan physical boards with AR, or import positions from board photos, 2D diagrams, and screenshots. Review detected pieces, save positions, add notes, and start analyzing. BROADCAST & RECORD GAMES Broadcast your over-the-board games or watch others move by move. Record games on an interactive board with legal move validation and save them as PGN. DIGITIZE SCORESHEETS Turn handwritten tournament scoresheets into digital games. Photograph, review, correct, and save without entering every move manually. ANALYZE WITH STOCKFISH Understand your games through engine analysis, move classifications, player accuracy scores, and evaluation graphs. IMPORT YOUR ONLINE GAMES Connect Chess.com and Lichess to import and browse your history by platform, date, opening, and result. TRAIN & PERSONALIZE Solve rated puzzles matched to your level or practice specific themes and difficulties. Track USCF, FIDE, and online ratings in one profile, and customize your board and pieces. SUBSCRIPTION PLANS Pawn (Free) 5 board scans/month, 5 scoresheet scans/month, 5 puzzles/day, and 3 game reviews/month. Knight — $4.99/month or $34.99/year 30 board scans/month, 30 scoresheet scans/month, 20 puzzles/day, and 15 game reviews/month. King — $12.99/month or $99.99/year Unlimited board scans, scoresheet scans, puzzles, and game reviews. Subscriptions auto-renew unless cancelled at least 24 hours before the current period ends. Your Apple ID account is charged for renewal within 24 hours before the period ends. Manage or cancel subscriptions in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.knightvision.app/privacy
Chess Engine
Instantly analyze any chess board by scanning it to find the best next move. This tool uses advanced AI and a powerful chess engine to help you study, train, and improve your game. Digitize diagrams from books or review tournament games with confidence.
- Scan physical or digital chess boards
- Instantly find the next best move
- AI board recognition
- Stockfish engine analysis
- Digitize diagrams from books
- Save and export to FEN/PGN
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Capture any physical or digital chess board and instantly find the NEXT BEST MOVE. No more manual entry. No more guessing. Just scan, solve, and win. Stop wondering what you missed and start understanding why. ▶ Why Use ChessFox: Whether you are reading a chess book, playing a friend at a park, or reviewing a tournament game, ChessFox uses stockfish to "see" the board and provide instantly the next best move. - Total Confidence in Every Game: Never feel lost in a position again. Get the clarity of a 3500+ ELO engine analyzing your specific real-world setup. - Study Smarter, Not Harder: Instantly digitize diagrams from books or newspapers. Spend your time learning the theory, not setting up the pieces. - The Perfect Training Partner: Carry a Grandmaster in your pocket. Get hints, find blunders, and explore "what-if" scenarios on the fly. ▶ What Sets ChessFox Apart: - Board Recognition: Our AI identifies pieces and positions from any chess board. - Deep Engine Analysis: Powered by Stockfish, the world’s strongest chess engine, for precision accuracy. - Save & Export: Instantly convert scans to FEN or PGN to share with coaches or export to your favorite analysis tools. JOIN THOUSANDS OF IMPROVING PLAYERS From casual hobbyists to dedicated club players, ChessFox is the essential tool for anyone serious about improving their game. Stop playing in the dark and start seeing the board with total clarity. Download ChessFox now and find your next winning move. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Chess Engine at every 5 days against KnightVision's every 3 weeks. On price, rating, ratings volume and ads 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
Both are free to download. KnightVision sells 4 in-app purchases, starting at $4.99 per month and Chess Engine sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for KnightVision against 5.0 for Chess Engine. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
KnightVision ships an update every 3 weeks, Chess Engine every 5 days. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.
| Parameter | KnightVision | Chess Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (2 ratings) |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 143 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | Abraham Obubo | Abdullah Anwar |
Customer experience
KnightVision
Chess Engine
In-app purchases
KnightVision
- Knight Monthly$4.991 Month
- King Monthly$12.991 Month
- Knight Yearly$34.991 Year
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- King Yearly$99.991 Year
Chess Engine
- ChessScan Pro Weekly7 Days trial$4.997 Days
- ChessFox Pro Weekly$4.997 Days
- ChessFox Pro Annually$19.991 Year
- ChessFox Pro Lifetime$29.99








