# Easy as Pi vs π Challenge

The clearest difference is iOS requirement: Easy as Pi at 9.0 against π Challenge's 13.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Easy as Pi | π Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/easy-as-pi-memory-trainer/id1494716872/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 9 months |
| Monetization | Free | — |
| Size | 7 MB | 29 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Play Button Entertainment Inc.](https://appshunter.io/developer/1486549892) | [Warashibe Tech LLC](https://appshunter.io/developer/1567747524) |

## What reviewers say

### Easy as Pi

[App page](https://appshunter.io/ios/app/easy-as-pi-memory-trainer/id1494716872)

Practice and test your ability to recall digits of Pi. This educational tool helps you improve your memory of this mathematical constant.

**Highlights:** Test Pi digit recall, Practice memory skills, Educational tool, Focus on mathematical constant

**Features:** macOS Compatibility

**In-app purchases:** none


### π Challenge

[App page](https://appshunter.io/ios/app/challenge/id6743357759)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Easy as Pi free?

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

### Is π Challenge free?

π Challenge is free to download, with no in-app purchases.

### Do Easy as Pi or π Challenge have ads?

Neither Easy as Pi nor π Challenge shows ads.

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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.*