Be the BIGGEST NERD among your family and friends !

√ MEMORABLE: Color & Musical notes represent each digit for improved recall

√ VISUALIZE: Number Chunking (20 pages, 50 numbers per page at 5 lines per page and 10 numbers per line).

√ COMPETE: Leaderboards & Achievements (Game Center)

√ PRACTISE MAKES PERFECT: Play everyday for best results.

√ BACKGROUND: Pi is a mathematical constant that is the ratio of a circle's circumference to its diameter. It is an irrational number, which means it cannot be represented by as a ratio of any 2 integers.

The best and fastest way to memorize 1000 digits of Pi !

What’s New

Version 2.2.3

* Updated interface for newer iOS devices

Ratings and Reviews

4.3 out of 5
51 Ratings

51 Ratings

winner218 ,

Great app

The app is perfect, I stated about a week ago coming in with 15 digits and now I just hit 100, one thing I really like is that there are rows of ten so I memorize them like they are each phone numbers I also like that you can change the colors because I just like plain all black, the reason I gave it four is because it always is a ten minute timer, I wish it was either like the clock app form apple that you just roll until you get your amount or they just have preset options like 1,10,15,30,60,90 and ♾, because I can’t always finish in ten minutes but execpt for that the app is great

Jngfuyfdgjgvjgfcvh ,

Good but freezes sometimes

This is an amazing way to learn the digits of pi and my goal is to learn the 1,000 digits this app has to offer. The only negative thing is that sometimes it freezes either at the home page of the app or [rarely] while I'm in the process of typing the digits. Maybe also more digits would be good.

UPSY42q ,

Good design, bad pi test app

There's a lot to like about the design of this. Colors and sounds. Great! 10 minute unforgiving timer? Not so much. I can recite 1,000 digits of pi in under ten minutes, no prob. I can even recite those digits BACKWARDS in 9-12 minutes. But to do so I had to train using other apps. Typing and reciting are two different things,and this app is too unforgiving. One slip and you're out. I wouldn't recommend this to anyone trying to practice learning pi. There's no practice mode. There's no untimed mode. It would be great to unlock achievements at every hundred memorized in untimed mode, and for time scores (100 in under 60 seconds! 100 in under 45! 100 in under 30!) There should be a "flawless" bonus, but also allow two strikes every 100 difits or so. Maybe bonuses for flawless streaks. And last but not least, how about a "backwards" mode, and a mode that tests place value? By that last I mean it asks you what numeral lies at a specific decimal plac. For example: 1? The answer is 1.
2? The answer is 4.
3? The answer is 1.
4? 5
5? 9
100? The answer is 0

App Privacy

The developer, Peter Li, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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