---
title: "Pi Brain - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "How many digits of pi can you remember?  Since pi is an irrational number, the digits never end or repeat.  You will probably never have to use more than a dozen digits in any calculation, so why lear"
---

# Pi Brain — United States

![Pi Brain App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple5/v4/71/3b/56/713b563b-7815-d3a5-bf2e-e6290d50393c/pr_source.png/434x0w.png)

**Developer:** [Henry Chan](https://apptail.io/developer/henry-chan-wMue)
**Category:** Education
**Rating:** 3.7/5 (9 ratings)
**Price:** Free
**Bundle ID:** com.hjchome.pibrain
**Store:** Apple App Store
**Country:** United States
**Version:** 1.5 (released 2015-01-03)
**Original Release:** 2009-04-21
**Languages:** English, French, Italian, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id311957474)
**AppTail Page:** [https://apptail.io/app/pi-brain-DnDe/united-states](https://apptail.io/app/pi-brain-DnDe/united-states)

## Pi Brain Description
How many digits of pi can you remember?  Since pi is an irrational number, the digits never end or repeat.  You will probably never have to use more than a dozen digits in any calculation, so why learn the digits of pi?  For some people this is a challenge.  The Guinness record for remembered digits is 67,890 digits.

With this program you will have the opportunity to test your memory, and learn a universal number.  Have contests with your friends and family.  This is a great learning tool for all ages. You be surprised how much you can remember with a little practice.

The option to save the score will only appear if you do not make more than one mistake and do not use the hint or switch to the learn mode.  Scores can be sorted by date, name, or score.  Use this list to verify your retention over long periods.

## Pi Brain Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/c1/eb/44/c1eb447a-342a-a770-a743-052945bfe265/pr_source.png/640x960.png)

## Pi Brain Rating Breakdown in United States
- 5 stars: 3 (33%)
- 4 stars: 3 (33%)
- 3 stars: 1 (11%)
- 2 stars: 1 (11%)
- 1 stars: 1 (11%)

## Pi Brain Reviews in United States

### ****- "Good App"
Overall I think this is a good app. One recommendation would be to allow which digit to start or don't count the whole number 3 in the row divisions. Just a suggestion. Keep up the good work!!
-- fstsk8ter, 2016-03-19

### ***-- "Pi master"
After you past 40 or so, it blocks what row you are on.
-- VaterJake, 2015-11-11

### ****- "Great game, just one problem"
This game is fun, and it helps me alot with memerizing pi, but when I open my scores, it shows nothing. Am I doing something wrong, or is it the game? Other than that it is fun and i love the set up of the game.
-- Paige 82 123, 2015-06-22

### *---- "Bug"
DEVELOPERS: There's a bug where when you get over 100 or so digits it does this weird scrolling thing after every button press. Please fix!
-- thewhitesmithh, 2015-04-25

### ****- "Simple and fun"
My son and I like playing this game as we learn more digits of pi.  I'm up to 230, and he's up to 60. Of course, since he's only three years old, I think he still has me beat.
-- Every nickname is taken 654321, 2015-01-21

### **--- "Needs more improvement for iOS8"
Now works in iOS8, but the screen "jumps" when you get past ~100. Also, my score history got deleted when I updated!! I'm disappointed about that.
-- presidentjdm, 2015-01-07

### *---- "Ios 8"
Fix your stuff for ios 8!!!!
-- Fraggerchamp, 2014-09-21

### ***** "Amazing 😵😵"
Ok so I already knew 112 from 5th grade( I won against 6 graders too 😏😏) ok so this isn't about me it's about how amazing this app is so as I said I knew 112 but that doesn't matter you could know 2 but if you put time into it you can learn a lot more ( like me I learned up to 418 with this app)
-- Donuts4everandever 🍩, 2014-03-31

### ***** "Great!!"
This game is great if u are interested in Pi digits!!
-- Jeddy man 22, 2014-03-14

### ****- "Good option for old devices"
Great app! I can't find settings. Also, you should be able to practice starting at a specific digit, and the time completed in and errors should be recorded when you save a score.
-- Joel Christophel, 2014-03-11

[View all Pi Brain reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## Pi Brain Discovered Keywords
- pi brain

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- [OverType](https://apptail.io/app/overtype-Phlp/united-states)
- [CAPM Prep & Test](https://apptail.io/app/capm-prep-test-yvhq/united-states)
- [Pi Score Challenge](https://apptail.io/app/pi-score-challenge-EvLq/united-states)

## Pi Brain Available In
- [United States](https://apptail.io/app/pi-brain-DnDe/united-states)
- [United Kingdom](https://apptail.io/app/pi-brain-DnDe/united-kingdom)
- [Canada](https://apptail.io/app/pi-brain-DnDe/canada)
- [Australia](https://apptail.io/app/pi-brain-DnDe/australia)
- [Singapore](https://apptail.io/app/pi-brain-DnDe/singapore)
- [Hong Kong SAR China](https://apptail.io/app/pi-brain-DnDe/hong-kong)
- [Türkiye](https://apptail.io/app/pi-brain-DnDe/turkey)
- [Norway](https://apptail.io/app/pi-brain-DnDe/norway)
- [Israel](https://apptail.io/app/pi-brain-DnDe/israel)
- [Switzerland](https://apptail.io/app/pi-brain-DnDe/switzerland)
- [New Zealand](https://apptail.io/app/pi-brain-DnDe/new-zealand)
- [China](https://apptail.io/app/pi-brain-DnDe/china)
- [Russia](https://apptail.io/app/pi-brain-DnDe/russia)
- [Saudi Arabia](https://apptail.io/app/pi-brain-DnDe/saudi-arabia)
- [Japan](https://apptail.io/app/pi-brain-DnDe/japan)
- [South Korea](https://apptail.io/app/pi-brain-DnDe/south-korea)
- [Kuwait](https://apptail.io/app/pi-brain-DnDe/kuwait)
- [Kazakhstan](https://apptail.io/app/pi-brain-DnDe/kazakhstan)
- [Lebanon](https://apptail.io/app/pi-brain-DnDe/lebanon)
- [Sri Lanka](https://apptail.io/app/pi-brain-DnDe/sri-lanka)
- [Madagascar](https://apptail.io/app/pi-brain-DnDe/madagascar)
- [North Macedonia](https://apptail.io/app/pi-brain-DnDe/north-macedonia)
- [Mexico](https://apptail.io/app/pi-brain-DnDe/mexico)
- [Malaysia](https://apptail.io/app/pi-brain-DnDe/malaysia)
- [Nigeria](https://apptail.io/app/pi-brain-DnDe/nigeria)
- [Nepal](https://apptail.io/app/pi-brain-DnDe/nepal)
- [Peru](https://apptail.io/app/pi-brain-DnDe/peru)
- [Philippines](https://apptail.io/app/pi-brain-DnDe/philippines)
- [Pakistan](https://apptail.io/app/pi-brain-DnDe/pakistan)
- [Thailand](https://apptail.io/app/pi-brain-DnDe/thailand)
- [Tunisia](https://apptail.io/app/pi-brain-DnDe/tunisia)
- [Taiwan](https://apptail.io/app/pi-brain-DnDe/taiwan)
- [Ukraine](https://apptail.io/app/pi-brain-DnDe/ukraine)
- [Vietnam](https://apptail.io/app/pi-brain-DnDe/vietnam)
- [United Arab Emirates](https://apptail.io/app/pi-brain-DnDe/united-arab-emirates)
- [South Africa](https://apptail.io/app/pi-brain-DnDe/south-africa)
- [Armenia](https://apptail.io/app/pi-brain-DnDe/armenia)
- [Argentina](https://apptail.io/app/pi-brain-DnDe/argentina)
- [Azerbaijan](https://apptail.io/app/pi-brain-DnDe/azerbaijan)
- [Brazil](https://apptail.io/app/pi-brain-DnDe/brazil)
- [Belarus](https://apptail.io/app/pi-brain-DnDe/belarus)
- [Colombia](https://apptail.io/app/pi-brain-DnDe/colombia)
- [Dominican Republic](https://apptail.io/app/pi-brain-DnDe/dominican-republic)
- [Algeria](https://apptail.io/app/pi-brain-DnDe/algeria)
- [Ecuador](https://apptail.io/app/pi-brain-DnDe/ecuador)
- [Egypt](https://apptail.io/app/pi-brain-DnDe/egypt)
- [Indonesia](https://apptail.io/app/pi-brain-DnDe/indonesia)
- [India](https://apptail.io/app/pi-brain-DnDe/india)
- [Iceland](https://apptail.io/app/pi-brain-DnDe/iceland)

---

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