# Constant WX Brief vs FD Viewer

The clearest difference is ratings volume: Constant WX Brief at 110 against FD Viewer's 1. Constant WX Brief also leads on iOS requirement (13.0 vs 16.0). FD Viewer's advantage is rating (5.0 vs 4.8). On price, update cadence, ads 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.

FD Viewer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Constant WX Brief has 110 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Constant WX Brief | FD Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (110 ratings)](https://appshunter.io/ios/app/constant-wx-brief/id1537913965/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fd-viewer/id1550977564/reviews)** |
| Number of ratings | **110** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | Free |
| Size | 153 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Lederman](https://appshunter.io/developer/1537913967) | [Neil Cormia](https://appshunter.io/developer/1056328330) |

## What reviewers say

### Constant WX Brief

[App page](https://appshunter.io/ios/app/constant-wx-brief/id1537913965)

Plan your flights with instant weather summaries and personal minimums. Quickly view icing and turbulence forecasts to find optimal departure times and altitudes. Access up to 48 hours of hourly forecasts and 72 hours of downloaded data for offline use.

**Highlights:** Instant weather summaries, Personal minimums support, Icing and turbulence viewer, Hourly forecasts up to 48 hours, Offline functionality, Supports phones and tablets

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

**In-app purchases:** none


### FD Viewer

[App page](https://appshunter.io/ios/app/fd-viewer/id1550977564)

Access and read detailed text weather products from the National Weather Service. This app reformats Area Forecast Discussions into a user-friendly interface, allowing easy navigation through sections and offices.

**Highlights:** Read Area Forecast Discussions (AFDs), View NWS offices on a map, List offices by distance or alphabetically, Paginated section navigation, User-friendly reformatting of weather data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Constant WX Brief free?

Constant WX Brief is free to download, with no in-app purchases.

### Is FD Viewer free?

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

### Which has better reviews, Constant WX Brief or FD Viewer?

FD Viewer is rated higher. Constant WX Brief averages 4.8 out of 5 from 110 ratings, while FD Viewer averages 5.0 from 1 ratings.

### Do Constant WX Brief or FD Viewer have ads?

Neither Constant WX Brief nor FD Viewer shows ads.

### Which is updated more often, Constant WX Brief or FD Viewer?

Constant WX Brief ships an update every 2 weeks, and FD Viewer every 2 weeks. Most recently, Constant WX Brief was updated on October 29, 2026 and FD Viewer on October 7, 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.*