# Project Avicenna vs Riɣi

The clearest difference is in-app purchases: Project Avicenna at none against Riɣi's 3. Project Avicenna also leads on iOS requirement (15.1 vs 18.4). On price, ads and device support there is nothing between them.

Both are free to download. Riɣi sells 3 one-off in-app purchases. Project Avicenna asks for nothing beyond the download.

## The numbers

| Metric | Project Avicenna | Riɣi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rii/id6746304572/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 8 months |
| Monetization | — | Free |
| Size | 13 MB | 16 MB |
| Requires iOS | **15.1** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seif Elfayoumy](https://appshunter.io/developer/1578013309) | [James Nerlinger](https://appshunter.io/developer/1808226067) |

## What reviewers say

### Project Avicenna

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Riɣi

[App page](https://appshunter.io/ios/app/rii/id6746304572)

Experience a meditative game where simple taps create beautiful chain reactions of light and sound. With 99 levels and a dedicated meditation mode, it offers a peaceful escape for stress relief and finding inner balance.

**Highlights:** Chain reaction gameplay, 99 levels, Meditation Mode, Lifetime stats tracking, Ambient Tibetan bowl music, No ads or timers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter | $0.99 | one-time |
| Patron | $4.99 | one-time |
| Champion | $9.99 | one-time |


## Frequently asked questions

### Is Project Avicenna free?

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

### Is Riɣi free?

Riɣi is free to download, with in-app purchases available.

### Do Project Avicenna or Riɣi have ads?

Neither Project Avicenna nor Riɣi 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.*