pi! vs HyperPi Lite
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
pi!
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How many digits of Ο can you memorize? Ο Memorizer helps you learn and recall the digits of pi using a simple, focused approach: see the digits, hide them, type them back. No gimmicks β just effective memorization. LEARN β’ Study digits in customizable chunks of 5, 10, or 20 β’ See the digits, then hide and input them from memory β’ Pick up right where you left off β progress saves automatically β’ Browse all 10,000 digits with your learned positions highlighted β’ Tap any group to jump to that position and start practicing TEST β’ Type digits of Ο from memory as fast as you can β’ Timer starts on your first tap β no pressure until you're ready β’ See your entered digits organized in clean, readable groups β’ Wrong digit? Game over. See exactly where you went wrong and what the correct digit was β’ Beat your personal record and track your improvement STATS β’ Personal best record, learning progress, current streak β’ Average speed (digits per second), total sessions, and practice time β’ Full session history to review past attempts APPLE WATCH β’ Quick-test on the go with a compact numpad β’ Best record syncs with your iPhone via WatchConnectivity DESIGNED FOR APPLE β’ Liquid Glass design language β beautiful on iOS 26, iPadOS, and macOS β’ Apple Pencil Scribble support on iPad β write digits by hand β’ iCloud sync keeps your progress across all your devices β’ Haptic feedback on every tap for a satisfying input experience Whether you're a math enthusiast, a memory athlete, or just curious how far you can go β Ο Memorizer is your companion for the journey from 3.14 to 3.14159265358979323846β¦
HyperPi Lite
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Learn, practice, and memorize the digits of Pi with HyperPi Lite β a focused training app for beginners, memory enthusiasts, students, and anyone curious to discover how many digits they can remember. Whether you want to learn your first 20 digits, improve your personal record, or explore Pi far beyond 3.14159, HyperPi gives you several ways to train and test your memory. LEARN PI STEP BY STEP Study the sequence at your own pace with a clean interface designed for focused repetition. Enter each digit as you progress, use helpful hints when needed, and gradually build longer and more accurate sequences. CHALLENGE YOUR MEMORY How many digits of Pi can you recall without making a mistake? Test yourself in Challenge Mode, keep track of your progress, and try to beat your previous record. Customize your training and start from different positions instead of always beginning with 3.14. EXPLORE 1,000,000 DIGITS Browse the first one million digits of Pi in a clear, searchable reference view. Jump directly to a specific position, inspect any section of the sequence, and use the reference to support your learning and practice sessions. TRAIN FROM ANY POSITION Memorizing Pi is not only about knowing the beginning. Choose a starting position and practice a specific section of the sequence. This helps you strengthen weaker areas and build a more complete memory of Pi. TEST RANDOM POSITIONS Put your knowledge to a more difficult test by identifying digits from unexpected positions. Random challenges help you move beyond simple repetition and find out whether you truly know the sequence. DESIGNED FOR FOCUSED PRACTICE HyperPi Lite includes: β’ Guided Pi memorization β’ Digit-by-digit learning β’ Memory challenges β’ Custom starting positions β’ Random-position tests β’ Helpful hints β’ Progress tracking β’ Haptic feedback β’ A reference containing 1,000,000 digits β’ A clean and distraction-free interface HOW MANY DIGITS CAN YOU MEMORIZE? Start with a few digits, develop your own memorization technique, and improve one sequence at a time. Download HyperPi Lite and begin mastering the digits of Pi today.
Screenshots
Verdict
The clearest difference is device support: pi! at 3 against HyperPi Lite's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | pi! | HyperPi Lite |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch β better | iPhone |
| Requires iOS | 26.0 β better | 26.1 |
| Further details β not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Sijun Yang | Bassem Allani |
In-app purchases
pi!
No in-app purchases
HyperPi Lite
No in-app purchases





