# Pi Brain vs Monte Carlo Pi

The clearest difference is rating: Pi Brain at 3.7 against Monte Carlo Pi's 1.0. Pi Brain also leads on update cadence (every 5 months vs every 22 months) and ratings volume (9 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Pi Brain holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: Pi Brain has 9 ratings behind it against 1, so its average is the more settled of the two.

Pi Brain ships an update every 5 months, Monte Carlo Pi every 22 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Pi Brain | Monte Carlo Pi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (9 ratings)](https://appshunter.io/ios/app/pi-brain/id311957474/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/monte-carlo-pi/id6452315041/reviews) |
| Number of ratings | **9** | 1 |
| Positive reviews | 84.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 22 months |
| Monetization | Free | Free |
| Size | 3 MB | 1 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Henry Chan](https://appshunter.io/developer/311957477) | [Joshua D. steinberg](https://appshunter.io/developer/374154837) |

## What reviewers say

### Pi Brain

[App page](https://appshunter.io/ios/app/pi-brain/id311957474)

Test and improve your ability to memorize digits of pi. Challenge yourself and friends to see who can recall the most numbers. This app serves as a fun learning tool for all ages to enhance memory retention.

**Highlights:** Memorize pi digits, Test memory recall, Score saving, Sort scores by date, name, or score, Friend contests, Learning tool

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Very user-friendly
- 🚀 Helps learn Pi digits quickly
- 🌟 Fun and engaging
- ✅ Works smoothly
- 💡 Great for memorization

**What reviewers complain about**

- 🐛 Buggy on newer iOS versions
- 🐛 Scrolling issues after 100 digits
- 🐛 Score history deleted on update
- 🐛 Keyboard blocks buttons
- 🐛 Can't save scores

**Reported bugs**

- Screen 'jumps' past ~100 digits
- Score history deleted on update
- Keyboard pops up and blocks buttons
- Cannot save scores
- App shuts down without saving score

**Requested features**

- Allow starting from any digit
- Option to not count '3' in row divisions
- Add a clear button on test page
- Practice mode for digits already mastered
- Levels based on digits learned


### Monte Carlo Pi

[App page](https://appshunter.io/ios/app/monte-carlo-pi/id6452315041)

Explore the mathematical concept of pi through a fun, educational demonstration. This app uses a simulation to help you understand how pi can be approximated. It's designed for learning and enjoyment.

**Highlights:** Pi approximation demonstration, Educational simulation, Fun learning experience, Focus on mathematical concepts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pi Brain free?

Pi Brain is free to download, with no in-app purchases.

### Is Monte Carlo Pi free?

Monte Carlo Pi is free to download, with no in-app purchases.

### Which has better reviews, Pi Brain or Monte Carlo Pi?

Pi Brain is rated higher. Pi Brain averages 3.7 out of 5 from 9 ratings, while Monte Carlo Pi averages 1.0 from 1 ratings.

### Do Pi Brain or Monte Carlo Pi have ads?

Neither Pi Brain nor Monte Carlo Pi shows ads.

### Which is updated more often, Pi Brain or Monte Carlo Pi?

Pi Brain ships an update every 5 months, and Monte Carlo Pi every 22 months. Most recently, Pi Brain was updated on October 23, 2026 and Monte Carlo Pi on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*