# Easy as Pi vs π Pi Challenge

The clearest difference is in-app purchases: Easy as Pi at none against π Pi Challenge's 1. Easy as Pi also leads on ads (none vs shown) and iOS requirement (9.0 vs 13.0). On price and device support there is nothing between them.

Both are free to download. π Pi Challenge sells 1 in-app purchase, starting at $0.99 per month. Easy as Pi asks for nothing beyond the download.

## The numbers

| Metric | Easy as Pi | π Pi 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Size | 7 MB | 73 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) | [SIC Company Limited](https://appshunter.io/developer/1800842356) |

## 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 Pi Challenge

[App page](https://appshunter.io/ios/app/pi-challenge/id6756227034)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |


## Frequently asked questions

### Is Easy as Pi free?

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

### Is π Pi Challenge free?

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

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

π Pi Challenge shows ads; Easy as Pi does not.

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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.*