Fast Math vs Infinite Math

Train your brain with fast, fun math — a few minutes a day. Fast Math turns brain training into a game: quick mental math, addictive puzzles like Cross Math and Sudoku, memory challenges, and duels and tournaments against opponents at your level. DAILY WORKOUT • A 3-minute session mixing speed, accuracy and memory • Build a streak and keep your mind sharp every day GAMES FOR EVERY MOOD • Cross Math — fill interlocking equation grids without mistakes • Sudoku — the classic 9×9, simple or hard • Rush 60 — 60 seconds, chain answers for combo points • Survival — 3 lives, questions get faster and faster • Memory & Pairs — remember numbers, match hidden cards • Geometry — train your visual brain COMPETE • 1v1 duels matched to your exact level • 8-player tournaments with a live leaderboard • Duel record, win rate and best finishes in your stats PRACTICE THAT GROWS WITH YOU • 12 question types: mental math, chain calculations, percentages, missing operators, number sequences, patterns, equations, powers & roots, true/false, dominoes and memory • Difficulty adapts as you level up — from Beginner to Legend across 30 levels TRACK YOUR PROGRESS • Score trends, accuracy, streaks and rank points • Every mode counts toward your level FAST MATH PREMIUM • Unlimited daily sessions • All 12 question types • Full stats history • Subscribe weekly, monthly or yearly — or pay once with Lifetime Access and unlock everything forever Whether you want to sharpen your mental math, wake your brain up in the morning, train for an IQ test, or just beat your friends — Fast Math makes it fun. Download now and start your streak today. Subscription details Fast Math Premium is available as a weekly, monthly or yearly auto-renewing subscription, or as a one-time lifetime purchase. Payment is charged to your Apple Account at confirmation. A subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel it in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://focus-reset-b6f40.web.app/privacy-policy

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.