# Marine Zone vs fireDNPX

The clearest difference is update cadence: fireDNPX at weekly against Marine Zone's every 5 weeks. Marine Zone's advantage is iOS requirement (15.6 vs 17.6). 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.

Marine Zone ships an update every 5 weeks, fireDNPX weekly. The most recent releases landed on October 16, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Marine Zone | fireDNPX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 46 MB | 4 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Department of Marine and Coastal Resources](https://appshunter.io/developer/916568665) | [Natthanon Chaiyasak](https://appshunter.io/developer/934772605) |

## What reviewers say

### Marine Zone

[App page](https://appshunter.io/ios/app/marine-zone/id1591031005)

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

**In-app purchases:** none


### fireDNPX

[App page](https://appshunter.io/ios/app/firednpx/id6505078314)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Marine Zone free?

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

### Is fireDNPX free?

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

### Do Marine Zone or fireDNPX have ads?

Neither Marine Zone nor fireDNPX shows ads.

### Which is updated more often, Marine Zone or fireDNPX?

Marine Zone ships an update every 5 weeks, and fireDNPX weekly. Most recently, Marine Zone was updated on October 16, 2026 and fireDNPX on September 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.*