Chessight vs Blunder

Chessight is the fastest way to analyze, review, and learn from your chess games — all on your iPhone. Import your own games or analyze chess.com matches from any username. A full Stockfish 18 engine runs locally on your device to classify every move as brilliant, great, best, inaccuracy, mistake, or blunder — exactly like the big chess sites, but without an account or monthly subscription. WHAT YOU CAN DO • Analyze any PGN — paste a game or import via share sheet • Pull chess.com games by username with one tap • See move-by-move accuracy, classifications, and eval graph • Tap any move for a detailed breakdown with best alternatives • Explore variations freely — play "what if" lines and get instant evaluation • Share positions with a single tap PLAY & TRAIN • Play against Stockfish at adjustable depth (1–20) • Solve the daily chess.com puzzle • Browse 37+ famous checkmate patterns • Edit any position with a flexible board editor PRIVACY FIRST • The Stockfish engine runs entirely on your device — your games never leave your phone • No account required • Chess.com game data fetched through their public API FREE OR PREMIUM • One free deep analysis every day • Watch a short ad to unlock additional analyses • Or buy Premium once — unlimited analyses, no ads, forever • Premium is Family Shareable WHAT'S INCLUDED • Stockfish 18 with NNUE neural evaluation • Interactive board with legal-move highlighting • Opening book detection • Accuracy stats across games • iPad-optimized two-column layout • Works on iPhone and iPad (portrait and landscape) Download Chessight today and start analyzing every move you make.

Take a photo, open it in Blunder, and start exploring a chess position. Super fast! Blunder turns photos and screenshots of chessboards into interactive positions, with quick access to the camera and your photo library. FROM PHOTO TO POSITION - Recognize boards in screenshots and photos, including photos taken at an angle. - Automatically detect the board orientation. - Infer whose turn it is from highlighted last-move squares when available, or change the side to move yourself. EXPLORE THE BEST MOVES - View Stockfish analysis powered by Lichess. - Choose how many alternative lines to show. - Tap moves in a line to explore the continuation. - Choose an analysis time and available engine options. - Switch between the Blunder analysis view and the Lichess view. BUILD YOUR CHESS LIBRARY - Revisit recent games in a visual board gallery. - Save favorites and organize positions into folders. - Sync your library with iCloud across iPhone and iPad. - Turn off automatic history while keeping your favorites and organized games. SHARE AND CONTINUE Share positions as FEN, or open them in Lichess or Chess.com. Blunder requires iOS 26 or later. Internet access is required for Lichess analysis. Recognition results can vary with image quality and board design. BLUNDER PRO Your first 20 scans are free. Blunder Pro unlocks unlimited scans with a monthly or yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel them in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lucas.io/privacy