---
title: "HF Weather Fax — App Overview"
url: https://marlvel.ai/apps/com-blackcatsystems-hffax
category: Weather
developer: Black Cat Systems
platforms: ios
rating: 3.7 (18 ratings)
pricing: paid
report_level: overview
generated: 2026-04-23
last_verified: "2026-04-23T08:05:58.299Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This is a niche utility designed to turn mobile devices into offline weather fax decoders for maritime use.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Weather |
| Rating | 3.7 ★ (18) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 1.6 |
| Developer | Black Cat Systems |

<!-- SECTION: Summary -->
## What is HF Weather Fax?

HF Weather Fax enables mariners to decode marine weather radiofacsimile transmissions directly from an HF radio without an internet connection. The app captures audio via device microphones or Bluetooth to render weather charts and forecasts. It serves as a specialized tool for offline weather monitoring at sea.

<!-- SECTION: Key Features -->
## Key Features

- **Radiofacsimile Decoding**: Decodes marine weather charts by capturing audio from HF radio speakers or headphones.
- **Bluetooth Audio Support**: Allows for the reception of fax transmissions through connected Bluetooth audio devices.
- **NOAA/NWS Schedule Integration**: Includes a built-in copy of the NOAA/NWS Radiofacsimile schedule with options to download updates.
- **Image Management**: Provides manual or automatic saving of received fax images with export capabilities via iTunes.

<!-- SECTION: Target Audience -->
## Who is it for?

Mariners and sailors requiring offline access to weather charts via HF radio transmissions.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/hf-weather-fax/id394199597?uo=2)
- [Full Intelligence Report](https://marlvel.ai/apps/com-blackcatsystems-hffax)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-blackcatsystems-hffax).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*