# Avicenna Research vs BrainEye

The clearest difference is in-app purchases: Avicenna Research at none against BrainEye's 2. Avicenna Research also leads on rating (3.6 vs 3.3) and update cadence (every 2 weeks vs every 5 weeks). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. BrainEye sells 2 in-app purchases, starting at $3.99 per month. Avicenna Research asks for nothing beyond the download.

Avicenna Research holds the better App Store score, 3.6 against 3.3. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 55% of Avicenna Research's written reviews are positive against 52% of BrainEye's.

Avicenna Research ships an update every 2 weeks, BrainEye every 5 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Avicenna Research | BrainEye |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/avicenna-research/id1137173052/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/braineye/id6444953603/reviews) |
| Number of ratings | **5** | 3 |
| Positive reviews | **54.5% of reviews** | 52.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 217 MB | 132 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Avicenna Research Inc.](https://appshunter.io/developer/1137173051) | [Neuro Optica Pty Ltd](https://appshunter.io/developer/1658057250) |

## What reviewers say

### Avicenna Research

[App page](https://appshunter.io/ios/app/avicenna-research/id1137173052)

Participate in scientific research studies from your smartphone. Contribute to discoveries in health, psychology, and more by answering surveys and providing anonymized data. You have full control over your information and can withdraw at any time.

**Highlights:** Participate in research studies, Contribute to health discoveries, Anonymized data sharing, Control over personal data, Survey participation, Location and exercise data optional, Integrates with Health app

**Features:** Vision Pro support

**In-app purchases:** none


### BrainEye

[App page](https://appshunter.io/ios/app/braineye/id6444953603)

This app uses advanced eye movement tracking to assess brain performance and monitor overall well-being. It provides detailed reports and personalized insights to help users understand trends related to stress, fatigue, and other health factors.

**Highlights:** Eye movement tracking, Brain performance evaluation, Well-being monitoring, Health trend analysis, Detailed reporting, Personalized insights

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainEye Monthly | $3.99 | per month |
| BrainEye Yearly | $29.90 | per year |


## Frequently asked questions

### Is Avicenna Research free?

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

### Is BrainEye free?

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

### Which has better reviews, Avicenna Research or BrainEye?

Avicenna Research is rated higher. Avicenna Research averages 3.6 out of 5 from 5 ratings, while BrainEye averages 3.3 from 3 ratings.

### Do Avicenna Research or BrainEye have ads?

Neither Avicenna Research nor BrainEye shows ads.

### Which is updated more often, Avicenna Research or BrainEye?

Avicenna Research ships an update every 2 weeks, and BrainEye every 5 weeks. Most recently, Avicenna Research was updated on October 24, 2026 and BrainEye on October 20, 2026.

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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.*