# E vs Penguin Protection

E and Penguin Protection are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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.

E ships an update every 32 months, Penguin Protection every 34 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | E | Penguin Protection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/penguin-protection/id1471647682/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 32 months** | Every 34 months |
| Monetization | — | Free |
| Size | 213 MB | 63 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STRIX inc](https://appshunter.io/developer/1144861140) | [Smithsonian Institution](https://appshunter.io/developer/370564865) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-thology/id1457519660)

**Features:** macOS Compatibility

**In-app purchases:** none


### Penguin Protection

[App page](https://appshunter.io/ios/app/penguin-protection/id1471647682)

Experience life as a rockhopper penguin and nurture your chicks in this educational simulation. It's designed to align with first-grade life science modules focused on safety and growth.

**Highlights:** Raise penguin chicks, Simulate rockhopper penguin life, Educational content, Aligned with science curriculum, Interactive learning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is Penguin Protection free?

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

### Do E or Penguin Protection have ads?

Neither E nor Penguin Protection shows ads.

### Which is updated more often, E or Penguin Protection?

E ships an update every 32 months, and Penguin Protection every 34 months. Most recently, E was updated on October 26, 2026 and Penguin Protection on October 24, 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.*