# Pi Brain vs Pi Score Challenge

The clearest difference is in-app purchases: Pi Brain at none against Pi Score Challenge's 1. Pi Brain also leads on iOS requirement (6.0 vs 13.0). Pi Score Challenge's advantage is update cadence (fortnightly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Pi Score Challenge sells 1 one-off in-app purchase. Pi Brain asks for nothing beyond the download.

Pi Brain ships an update every 5 months, Pi Score Challenge fortnightly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Pi Brain | Pi Score Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (9 ratings)](https://appshunter.io/ios/app/pi-brain/id311957474/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 84.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 3 MB | 39 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Henry Chan](https://appshunter.io/developer/311957477) | [Lee Cooper](https://appshunter.io/developer/939505250) |

## 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


### Pi Score Challenge

[App page](https://appshunter.io/ios/app/pi-score-challenge/id6495716223)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Slice of Pie | $5.00 | one-time |


## Frequently asked questions

### Is Pi Brain free?

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

### Is Pi Score Challenge free?

Pi Score Challenge is free to download, with in-app purchases available.

### Do Pi Brain or Pi Score Challenge have ads?

Neither Pi Brain nor Pi Score Challenge shows ads.

### Which is updated more often, Pi Brain or Pi Score Challenge?

Pi Brain ships an update every 5 months, and Pi Score Challenge fortnightly. Most recently, Pi Brain was updated on October 23, 2026 and Pi Score Challenge on October 25, 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.*