# Constant WX Brief vs PreFlightIQ

The clearest difference is in-app purchases: Constant WX Brief at none against PreFlightIQ's 3. Constant WX Brief also leads on ratings volume (110 vs 1) and iOS requirement (13.0 vs 15.1). PreFlightIQ's advantage is update cadence (every 3 days vs every 2 weeks) and rating (5.0 vs 4.8). On price, ads and device support there is nothing between them.

Both are free to download. PreFlightIQ sells 3 in-app purchases, starting at $2.99 per month. Constant WX Brief asks for nothing beyond the download.

PreFlightIQ 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.

Constant WX Brief ships an update every 2 weeks, PreFlightIQ every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Constant WX Brief | PreFlightIQ |
| --- | --- | --- |
| 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/preflightiq/id6760239733/reviews)** |
| Number of ratings | **110** | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 153 MB | 36 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Lederman](https://appshunter.io/developer/1537913967) | [Spencer Lamoreaux](https://appshunter.io/developer/1883403895) |

## 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


### PreFlightIQ

[App page](https://appshunter.io/ios/app/preflightiq/id6760239733)

This AI-powered tool helps pilots make informed go/no-go decisions by analyzing flight documents like weather, NOTAMs, and weight & balance. It provides a comprehensive risk assessment in seconds, leveraging AI to cross-reference numerous factors that could impact a flight.

**Highlights:** AI-powered risk analysis, Automated document data extraction, Pilot and aircraft profile storage, Configurable operator risk boundaries, Detailed, color-coded risk reports, Direct document sharing from other apps

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $2.99 | per month |
| Pro Plan | $4.99 | per month |
| Pro Plan Annual | $44.99 | per year |


## Frequently asked questions

### Is Constant WX Brief free?

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

### Is PreFlightIQ free?

PreFlightIQ is free to download, with in-app purchases available.

### Which has better reviews, Constant WX Brief or PreFlightIQ?

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

### Do Constant WX Brief or PreFlightIQ have ads?

Neither Constant WX Brief nor PreFlightIQ shows ads.

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

Constant WX Brief ships an update every 2 weeks, and PreFlightIQ every 3 days. Most recently, Constant WX Brief was updated on November 3, 2026 and PreFlightIQ on October 31, 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.*