# Nightmare vs NSG Zero Hour

The clearest difference is ads: NSG Zero Hour at none against Nightmare's shown. NSG Zero Hour also leads on iOS requirement (13.0 vs 15.6). Nightmare's advantage is device support (4 vs 2). On price, update cadence 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.

Nightmare ships an update every 5 weeks, NSG Zero Hour monthly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Nightmare | NSG Zero Hour |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 1020 MB | 153 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [SangWon Park](https://appshunter.io/developer/1733581674) | [Excelsior Technologies](https://appshunter.io/developer/1061071132) |

## What reviewers say

### 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


### NSG Zero Hour

[App page](https://appshunter.io/ios/app/nsg-zero-hour-commando-gunner/id6754595543)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nightmare free?

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

### Is NSG Zero Hour free?

NSG Zero Hour is free to download, with no in-app purchases.

### Do Nightmare or NSG Zero Hour have ads?

Nightmare shows ads; NSG Zero Hour does not.

### Which is updated more often, Nightmare or NSG Zero Hour?

Nightmare ships an update every 5 weeks, and NSG Zero Hour monthly. Most recently, Nightmare was updated on October 30, 2026 and NSG Zero Hour on October 28, 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.*