# Hungry Penguin vs Nightmare

The clearest difference is review sentiment: Hungry Penguin at 100% against Nightmare's 0%. Hungry Penguin also leads on update cadence (fortnightly vs every 5 weeks). Nightmare's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hungry Penguin sells 3 one-off in-app purchases. Nightmare asks for nothing beyond the download.

Hungry Penguin ships an update fortnightly, Nightmare every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Hungry Penguin | Nightmare |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 16 MB | 1020 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [Starseed Forest](https://appshunter.io/developer/1602533992) | [SangWon Park](https://appshunter.io/developer/1733581674) |

## What reviewers say

### Hungry Penguin

[App page](https://appshunter.io/ios/app/hungry-penguin/id1606458786)

Dive into icy waters to catch fish and survive. As global warming impacts the environment, manage your oxygen and health. A portion of the app's income supports penguin conservation efforts.

**Highlights:** Dive and swim mechanics, Oxygen and health management, Environmental awareness theme, Penguin conservation support, Simple touch controls

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Shells | $2.99 | one-time |
| 50 Shells | $5.99 | one-time |
| 100 Shells | $8.99 | one-time |


### Nightmare

[App page](https://appshunter.io/ios/app/nightmare-zombie/id6478642708)

Survive a relentless zombie horde in this top-down shooter. Explore procedurally generated dungeons, fight endless waves, and utilize various actions to overcome obstacles and puzzles. Gamepad support enhances the immersive experience.

**Highlights:** Top-down zombie shooting, RPG mode with random dungeons, Wave mode with endless zombies, Exploration and puzzle-solving, Gamepad support and haptic feedback, Rolling and jumping mechanics

**Features:** Game Controller support

**In-app purchases:** none


## Frequently asked questions

### Is Hungry Penguin free?

Hungry Penguin is free to download, with in-app purchases available.

### Is Nightmare free?

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

### Do Hungry Penguin or Nightmare have ads?

Both Hungry Penguin and Nightmare show ads.

### Which is updated more often, Hungry Penguin or Nightmare?

Hungry Penguin ships an update fortnightly, and Nightmare every 5 weeks. Most recently, Hungry Penguin was updated on November 3, 2026 and Nightmare on November 4, 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.*