# MindProber vs EthOS

The clearest difference is rating: MindProber at 5.0 against EthOS's 4.6. MindProber also leads on update cadence (monthly vs every 2 months) and iOS requirement (12.4 vs 14.0). EthOS's advantage is ratings volume (42 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

MindProber holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: EthOS has 42 ratings behind it against 1, so its average is the more settled of the two.

MindProber ships an update monthly, EthOS every 2 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | MindProber | EthOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mindprober/id1329984122/reviews)** | [4.6 (42 ratings)](https://appshunter.io/ios/app/ethos-mobile-research/id1569877105/reviews) |
| Number of ratings | 1 | **42** |
| Positive reviews | — | 84.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 20 MB | 45 MB |
| Requires iOS | **12.4** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mindprober, Lda](https://appshunter.io/developer/1329984121) | [Panel Consulting Group LLC](https://appshunter.io/developer/1569877107) |

## What reviewers say

### MindProber

[App page](https://appshunter.io/ios/app/mindprober/id1329984122)

This app enables users to participate in research studies by collecting biometric and behavioral data synchronized with multimedia content. Users can accept invitations, view rewards, and provide feedback on content to help improve multimedia quality.

**Highlights:** Biometric data collection, Behavioral data synchronization, Multimedia content evaluation, Response data to questionnaires, Invitation to research studies, Reward tracking

**In-app purchases:** none


### EthOS

[App page](https://appshunter.io/ios/app/ethos-mobile-research/id1569877105)

Participate in research studies by completing tasks on your phone. Tasks may include taking photos, videos, answering surveys, and providing text feedback. Your insights help companies improve their products and services.

**Highlights:** Complete research tasks on your phone, Record photos and videos, Answer survey questions, Provide open-ended text feedback, Shape future products and services

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MindProber free?

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

### Is EthOS free?

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

### Which has better reviews, MindProber or EthOS?

MindProber is rated higher. MindProber averages 5.0 out of 5 from 1 ratings, while EthOS averages 4.6 from 42 ratings.

### Do MindProber or EthOS have ads?

Neither MindProber nor EthOS shows ads.

### Which is updated more often, MindProber or EthOS?

MindProber ships an update monthly, and EthOS every 2 months. Most recently, MindProber was updated on October 12, 2026 and EthOS on October 7, 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.*