# NSG Zero Hour vs Defend Your Flame

The clearest difference is update cadence: Defend Your Flame at every 2 days against NSG Zero Hour's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NSG Zero Hour ships an update monthly, Defend Your Flame every 2 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NSG Zero Hour | Defend Your Flame |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 153 MB | 68 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Excelsior Technologies](https://appshunter.io/developer/1061071132) | [Andrew Leach](https://appshunter.io/developer/1885337618) |

## What reviewers say

### NSG Zero Hour

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Defend Your Flame

[App page](https://appshunter.io/ios/app/defend-your-flame-td/id6763261764)

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

**In-app purchases:** none


## Frequently asked questions

### Is NSG Zero Hour free?

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

### Is Defend Your Flame free?

Defend Your Flame is free to download, with no in-app purchases.

### Do NSG Zero Hour or Defend Your Flame have ads?

Neither NSG Zero Hour nor Defend Your Flame shows ads.

### Which is updated more often, NSG Zero Hour or Defend Your Flame?

NSG Zero Hour ships an update monthly, and Defend Your Flame every 2 days. Most recently, NSG Zero Hour was updated on October 30, 2026 and Defend Your Flame on November 5, 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.*