# Curious Mobile vs MindSampler

The clearest difference is rating: Curious Mobile at 4.6 against MindSampler's 2.0. Curious Mobile also leads on update cadence (fortnightly 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.

Curious Mobile holds the better App Store score, 4.6 against 2.0. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

Curious Mobile ships an update fortnightly, MindSampler every 2 months. The most recent releases landed on August 28, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Curious Mobile | MindSampler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/curious-mobile/id1299242097/reviews)** | [2.0 (4 ratings)](https://appshunter.io/ios/app/mindsampler/id1617535718/reviews) |
| Number of ratings | **5** | 4 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | Free |
| Size | 235 MB | 52 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Child Mind Institute, Inc.](https://appshunter.io/developer/1266734440) | [MindSampler Inc.](https://appshunter.io/developer/1732037708) |

## What reviewers say

### Curious Mobile

[App page](https://appshunter.io/ios/app/curious-mobile/id1299242097)

This app facilitates secure data collection and content delivery for research studies and healthcare interventions. It supports groundbreaking research and educational programs, making scientific work more efficient.

**Highlights:** Secure data collection, Content delivery, Supports research studies, Enables healthcare interventions, Delivers educational programs

**Features:** macOS Compatibility, 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 Curious Mobile free?

Curious Mobile 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, Curious Mobile or MindSampler?

Curious Mobile is rated higher. Curious Mobile averages 4.6 out of 5 from 5 ratings, while MindSampler averages 2.0 from 4 ratings.

### Do Curious Mobile or MindSampler have ads?

Neither Curious Mobile nor MindSampler shows ads.

### Which is updated more often, Curious Mobile or MindSampler?

Curious Mobile ships an update fortnightly, and MindSampler every 2 months. Most recently, Curious Mobile was updated on August 28, 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.*