# Pi Score Challenge vs Pi Deliberate

The clearest difference is in-app purchases: Pi Deliberate at none against Pi Score Challenge's 1. Pi Score Challenge's advantage is iOS requirement (13.0 vs 15.1). 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 Deliberate asks for nothing beyond the download.

## The numbers

| Metric | Pi Score Challenge | Pi Deliberate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | — | Free |
| Size | 39 MB | 25 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lee Cooper](https://appshunter.io/developer/939505250) | [Byeongsoo Kim](https://appshunter.io/developer/1440292411) |

## What reviewers say

### 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 |


### Pi Deliberate

[App page](https://appshunter.io/ios/app/pi-deliberate/id6757496426)

This app uses memorizing digits of pi to train expertise through deliberate practice. It provides a valid environment, repetitions, and timely feedback to foster recognition, memory, and intuition.

**Highlights:** Memorize digits of pi, Deliberate practice training, Timely feedback on accuracy, Track progress based on mastery, Learn using chunking method, Develop recognition and memory

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pi Score Challenge free?

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

### Is Pi Deliberate free?

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

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

Neither Pi Score Challenge nor Pi Deliberate 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.*