# Project Avicenna vs Memory Tiles Challenge

The clearest difference is in-app purchases: Project Avicenna at none against Memory Tiles Challenge's 4. Memory Tiles 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. Memory Tiles Challenge sells 4 one-off in-app purchases. Project Avicenna asks for nothing beyond the download.

## The numbers

| Metric | Project Avicenna | Memory Tiles Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 13 MB | 41 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seif Elfayoumy](https://appshunter.io/developer/1578013309) | [Nha Huynh](https://appshunter.io/developer/1633177781) |

## What reviewers say

### Project Avicenna

[App page](https://appshunter.io/ios/app/project-avicenna-memory-tiles/id6737483183)

**Features:** macOS Compatibility

**In-app purchases:** none


### Memory Tiles Challenge

[App page](https://appshunter.io/ios/app/memory-tiles-challenge/id6760589935)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins 1000 | $0.99 | one-time |
| Coins 5500 | $4.99 | one-time |
| Remove ADS | $9.99 | one-time |
| Coins 12000 | $9.99 | one-time |


## Frequently asked questions

### Is Project Avicenna free?

Project Avicenna is free to download, with no in-app purchases.

### Is Memory Tiles Challenge free?

Memory Tiles Challenge is free to download, with in-app purchases available.

### Do Project Avicenna or Memory Tiles Challenge have ads?

Neither Project Avicenna nor Memory Tiles 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.*