# MindProber vs Viraaal

MindProber and Viraaal are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | MindProber | Viraaal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mindprober/id1329984122/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 20 MB | 23 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mindprober, Lda](https://appshunter.io/developer/1329984121) | [Poolday AI Inc](https://appshunter.io/developer/1708766142) |

## 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


### Viraaal

[App page](https://appshunter.io/ios/app/viraaal/id6467522931)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MindProber free?

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

### Is Viraaal free?

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

### Do MindProber or Viraaal have ads?

Neither MindProber nor Viraaal shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*