π Challenge vs Pi Recall 100

"Pi Challenge" is a fun and engaging brain-training game designed to help you memorize Pi while improving your memory and concentration skills. Easy-to-use controls make this game accessible to everyone—just input the next digit of Pi correctly to extend your streak. Be careful—one wrong digit and it's game over! Compete against yourself and your friends, share your best scores on social media, and enjoy a quick brain exercise anytime, anywhere. Exciting updates are on the way, including a Time Attack mode, online leaderboards, and educational features to master memorizing Pi. Join the challenge today and become a Pi master!

Pi Recall 100 makes memorizing 100 decimal digits of pi a focused, fast-paced challenge. Start with the 10-digit course. Clear each course to move on to the next group of digits, then use the on-screen number pad to race toward all 100 digits. FEATURES • Courses from 10 to 100 digits in 10-digit steps • A focused 3–2–1 countdown • Times measured to one hundredth of a second • Mistake counting • Top three records stored on your device for each course • A readable 100-digit reference grouped by 10 digits • Sound and haptic controls • Japanese and English, Dark Mode, and VoiceOver support The 10- and 20-digit courses are free. A one-time Premium purchase provides access to the 30–100 digit courses. You must also clear each preceding course before moving on. Records are stored locally on your device. No account, ads, online leaderboard, or cloud sync is required.