Pi Recall 100

How fast can you enter the digits of pi? Start with 10 digits, build your memory step by step, and race toward a new personal best.

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.