Comparison

3.14 Master Pi vs PiMemory

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

Head to head
About

3.14 Master Pi

Features
Read full description

3.14 Master Pi makes learning and memorizing Pi (3.14159) fun, visual, and addictive. Challenge your brain, compete with friends, and discover the hidden beauty of circles, numbers, and logic through sleek, intuitive gameplay. Features: β€’ Learn and memorize Pi by practicing digits in chunks and unlocking new levels. β€’ Speed challenges let you race against time to recall as many digits as you can. β€’ Real-world examples, like the Pizza Value Challenge, show how Pi applies to life. β€’ Track progress with accuracy, streak, and milestone stats. β€’ Customize your theme colors and keypad layout for a personal experience. β€’ Achievements and ranks reward your improvement from "Pi Novice" to "Pi Master." Whether you are a math enthusiast, student, or puzzle lover, Master Pi helps you train your memory and enjoy exploring one of the world’s most fascinating constants. No ads. No distractions. Just pure Pi.

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!

Screenshots

3.14 Master Pi4 screens
PiMemory4 screens

Verdict

The call

The clearest difference is in-app purchases: PiMemory at none against 3.14 Master Pi's 5. PiMemory also leads on update cadence (fortnightly vs every 2 months). 3.14 Master Pi's advantage is ads (none vs shown). On price, device support 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

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

Both are free to download. 3.14 Master Pi sells 5 one-off in-app purchases. PiMemory asks for nothing beyond the download.

UpkeepUpdate frequency

3.14 Master Pi ships an update every 2 months, PiMemory fortnightly. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard3 real differences Β· 3 level
3.14 Master Pi versus PiMemory: the parameters behind the verdict, then further details
Parameter3.14 Master PiPiMemory
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly β€” better
AdsNo β€” betterYes
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.1 β€” better16.6
Further details β€” not scored
Size47 MB11 MB
Age rating4+4+
DeveloperDavid BrownYounghan Kim

In-app purchases

5 purchases

3.14 Master Pi

One-time5
  • Summation Supporter$2.99
  • Premium (Lifetime)$4.99
  • Radical Patron$9.99
Show 2 more
  • Infinite Supporter$29.99
  • Pi Master$99.99
None

PiMemory

No in-app purchases

Questions

Is 3.14 Master Pi free?
3.14 Master Pi is free to download, with in-app purchases available.
Is PiMemory free?
PiMemory is free to download, with no in-app purchases.
Do 3.14 Master Pi or PiMemory have ads?
PiMemory shows ads; 3.14 Master Pi does not.
Which is updated more often, 3.14 Master Pi or PiMemory?
3.14 Master Pi ships an update every 2 months, and PiMemory fortnightly. Most recently, 3.14 Master Pi was updated on October 10, 2026 and PiMemory on October 1, 2026.

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