ChessSnap vs Infinite Math

Turn handwritten chess scoresheets into PGN in seconds. Just snap a photo. ChessSnap uses AI to read your moves, validates them with chess rules, and delivers a clean PGN ready for analysis in Lichess, Chess.com, or any engine. HIGHLIGHTS No more typing Capture and convert instantly. Smart move validation AI recognition + rule-based verification. Learns your handwriting Improves with every game. Multiple player profiles Perfect for coaches, families, and clubs. 11 notation languages Including English, German, French, Spanish, and more. Cloud sync Access your games on all devices. Share instantly Open in Lichess or Chess.com, or export PGN. FREE TRIAL & LIFETIME Free trial: 5 scans in total, 1 player profile Lifetime, one-time purchase: Unlimited scans Up to 10 player profiles One purchase. No subscription, nothing to renew. PRIVACY Your data stays private. No ads. No tracking. EU-based secure storage. PERFECT FOR Tournament players Coaches Chess parents Anyone digitizing scoresheets Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.chesssnap.app/privacy

That “I solved it!” feeling, all over again. A math app for grown-ups who solve for pleasure—not for any exam. From the wonder of primes and divisors to the crane-and-turtle puzzle, the Monty Hall problem, and even the legendary entrance exams of Japan's top universities— a collection of beautiful problems that make you feel "numbers are fascinating." ■ Made for you if you ・love numbers and logic puzzles ・enjoy giving your mind a workout in spare moments ・want to know not just the answer, but the idea behind it ・are done with exams, but want to rediscover the joy of math ■ Six categories, 100+ problems (more added over time) ・Number Theory & Puzzles … primes, divisors, Fibonacci, perfect numbers, and more ・Classic Problems … crane-and-turtle, Monty Hall, the Königsberg bridges, Pick's theorem, and more ・Elementary Exams … ferris-wheel logic, seesaw puzzles, and other gems ・Junior-High Exams … work, travel, concentration, and counting problems ・High-School Exams … symmetric expressions, probability, Euler's prime-generating formula ・University Exams … legendary stumpers like "Is tan 1° rational?" and "Prove π > 3.05" ■ Highlights ・Sessions … test yourself with five problems at a time ・Explanations worth reading … not just the answer, but the background and the thinking ・Interactive figures … trace the Königsberg bridges or Pick's theorem with your finger ・Progress tracking … solved problems are recorded; aim to clear them all ・19 languages … enjoy these problems in Japanese, English, Chinese, Korean, and more Answers are simple multiple choice—and some figures come alive at your fingertips. Enjoy the world of numbers on your commute, on a break, or before bed.