# Eterna vs Tetrid Game

The clearest difference is ads: Eterna at none against Tetrid Game's shown. Eterna also leads on update cadence (every 3 weeks vs every 3 months) and device support (3 vs 1). On price 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.

Eterna ships an update every 3 weeks, Tetrid Game every 3 months. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Eterna | Tetrid Game |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (15 ratings)](https://appshunter.io/ios/app/eterna/id1513216417/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 188 MB | 7 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Vital Mind Media](https://appshunter.io/developer/1513216416) | [Claudio Souza Mattos](https://appshunter.io/developer/1774316937) |

## 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


### Tetrid Game

[App page](https://appshunter.io/ios/app/tetrid-game/id6502238975)

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

**In-app purchases:** none


## Frequently asked questions

### Is Eterna free?

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

### Is Tetrid Game free?

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

### Do Eterna or Tetrid Game have ads?

Tetrid Game shows ads; Eterna does not.

### Which is updated more often, Eterna or Tetrid Game?

Eterna ships an update every 3 weeks, and Tetrid Game every 3 months. Most recently, Eterna was updated on October 5, 2026 and Tetrid Game on October 10, 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.*