# Eterna vs Zoodemic

The clearest difference is rating: Zoodemic at 5.0 against Eterna's 3.7. Eterna's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (15 vs 2). 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.

Zoodemic holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: Eterna has 15 ratings behind it against 2, so its average is the more settled of the two.

Eterna ships an update every 3 weeks, Zoodemic every 5 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Eterna | Zoodemic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (15 ratings)](https://appshunter.io/ios/app/eterna/id1513216417/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zoodemic/id1537220619/reviews)** |
| Number of ratings | **15** | 2 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 188 MB | 77 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Vital Mind Media](https://appshunter.io/developer/1513216416) | [University of Nebraska at Omaha College of Information Science and Technology](https://appshunter.io/developer/445659986) |

## What reviewers say

### Eterna

[App page](https://appshunter.io/ios/app/eterna/id1513216417)

Engage in a citizen science game to design RNA molecules for medical research. Solve puzzles to unlock lab access and contribute to inventing new medicines through challenges.

**Highlights:** Design RNA molecules, Solve scientific puzzles, Participate in medical research, Invent new medicines, Unlock lab access

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

**In-app purchases:** none


### Zoodemic

[App page](https://appshunter.io/ios/app/zoodemic/id1537220619)

Engage in a "serious game" designed to teach students about preventing zoonotic diseases. Test your skills against virus waves and earn power-ups by answering educational questions. Content is sourced from reputable health organizations.

**Highlights:** Zoonotic disease education, Virus wave gameplay, Educational trivia for power-ups, Content from CDC and universities, Targeted at students

**In-app purchases:** none


## Frequently asked questions

### Is Eterna free?

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

### Is Zoodemic free?

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

### Which has better reviews, Eterna or Zoodemic?

Zoodemic is rated higher. Eterna averages 3.7 out of 5 from 15 ratings, while Zoodemic averages 5.0 from 2 ratings.

### Do Eterna or Zoodemic have ads?

Neither Eterna nor Zoodemic shows ads.

### Which is updated more often, Eterna or Zoodemic?

Eterna ships an update every 3 weeks, and Zoodemic every 5 months. Most recently, Eterna was updated on November 3, 2026 and Zoodemic on November 3, 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.*