# Avicenna Research vs MindSampler

The clearest difference is rating: Avicenna Research at 3.6 against MindSampler's 2.0. Avicenna Research also leads on update cadence (every 2 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Avicenna Research holds the better App Store score, 3.6 against 2.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

Avicenna Research ships an update every 2 weeks, MindSampler every 2 months. The most recent releases landed on September 9, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Avicenna Research | MindSampler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/avicenna-research/id1137173052/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/mindsampler/id1617535718/reviews) |
| Number of ratings | **5** | 4 |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 214 MB | 52 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Avicenna Research Inc.](https://appshunter.io/developer/1137173051) | [MindSampler Inc.](https://appshunter.io/developer/1732037708) |

## 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


### MindSampler

[App page](https://appshunter.io/ios/app/mindsampler/id1617535718)

Participate in scientific research by answering short questions and experiments throughout your day. Contribute to understanding human thought, feelings, and behavior.

**Highlights:** Contribute to scientific understanding, Receive daily experiment notifications, Answer short questions, Enter study codes, Track daily life insights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Avicenna Research free?

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

### Is MindSampler free?

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

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

Avicenna Research is rated higher. Avicenna Research averages 3.6 out of 5 from 5 ratings, while MindSampler averages 2.0 from 4 ratings.

### Do Avicenna Research or MindSampler have ads?

Neither Avicenna Research nor MindSampler shows ads.

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

Avicenna Research ships an update every 2 weeks, and MindSampler every 2 months. Most recently, Avicenna Research was updated on September 9, 2026 and MindSampler on June 5, 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.*