# Zooniverse vs Mentwire

The clearest difference is ads: Zooniverse at none against Mentwire's shown. Zooniverse also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

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

Zooniverse ships an update every 2 months, Mentwire every 6 weeks. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Zooniverse | Mentwire |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (37 ratings)](https://appshunter.io/ios/app/zooniverse/id1194130243/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 50 MB | 7 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Zooniverse](https://appshunter.io/developer/1851894671) | [Nowflux Labs, LLC.](https://appshunter.io/developer/1764410049) |

## What reviewers say

### Zooniverse

[App page](https://appshunter.io/ios/app/zooniverse/id1194130243)

Participate in real scientific research by classifying data for projects across various disciplines. Contribute to discoveries and datasets that advance knowledge, all from your mobile device. This platform connects volunteers with professional researchers for impactful citizen science.

**Highlights:** People-powered research platform, Volunteer opportunities, Access to mobile-friendly projects, Push notification updates, View publications, Contribute to scientific discoveries

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mentwire

[App page](https://appshunter.io/ios/app/mentwire/id6759682204)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zooniverse free?

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

### Is Mentwire free?

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

### Do Zooniverse or Mentwire have ads?

Mentwire shows ads; Zooniverse does not.

### Which is updated more often, Zooniverse or Mentwire?

Zooniverse ships an update every 2 months, and Mentwire every 6 weeks. Most recently, Zooniverse was updated on October 16, 2026 and Mentwire on October 11, 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.*