Comparison

PiMemory vs pi!

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

PiMemory

Features
Read full description

PiMemory is a fun app to learn and memorize the digits of Ο€. In Game Mode, you can enter numbers to challenge yourself and set high scores up to 3,000 decimal places. In Learn Mode, you can view and practice Ο€ up to 3,000 decimal places repeatedly. Key Features: - Game Mode: Challenge yourself by matching Ο€ digits using the numeric keypad (up to 3,000 decimal places) - Learn Mode: Check and practice Ο€ digits as far as you want (up to 3,000 decimal places) - High Score Management: Save and update your personal records - Intuitive UI: Optimized design for both iPhone and iPad - Ads: Banner ads for free use (privacy-compliant) Have fun memorizing Ο€ with PiMemory while improving your focus and memory skills!

About

pi!

Features
Read full description

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 3.14159265358979323846…

Screenshots

PiMemory4 screens
pi!4 screens

Verdict

The call

The clearest difference is ads: pi! at none against PiMemory's shown. PiMemory's advantage is iOS requirement (16.6 vs 26.0). On price, in-app purchases and device support 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Β· 4 level
PiMemory versus pi!: the parameters behind the verdict, then further details
ParameterPiMemorypi!
PriceFreeFree
Update frequencyFortnightlyβ€”
AdsYesNo β€” better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, Apple Watch β€” better
Requires iOS16.6 β€” better26.0
Further details β€” not scored
Size11 MB4 MB
Age rating4+4+
DeveloperYounghan KimSijun Yang

In-app purchases

None

PiMemory

No in-app purchases

None

pi!

No in-app purchases

Questions

Is PiMemory free?
PiMemory is free to download, with no in-app purchases.
Is pi! free?
pi! is free to download, with no in-app purchases.
Do PiMemory or pi! have ads?
PiMemory shows ads; pi! does not.

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