# Sky Briefing vs Dayfly

The clearest difference is in-app purchases: Sky Briefing at none against Dayfly's 1. Sky Briefing also leads on iOS requirement (9.0 vs 17.0). Dayfly's advantage is update cadence (fortnightly vs every 7 months). On price, ads and device support there is nothing between them.

Both are free to download. Dayfly sells 1 one-off in-app purchase. Sky Briefing asks for nothing beyond the download.

Sky Briefing ships an update every 7 months, Dayfly fortnightly. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Sky Briefing | Dayfly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (11 ratings)](https://appshunter.io/ios/app/sky-briefing/id575888010/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 28 MB | 1 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Philippe Leybaert](https://appshunter.io/developer/1059258050) | [Yohan Gwak](https://appshunter.io/developer/1778377620) |

## What reviewers say

### Sky Briefing

[App page](https://appshunter.io/ios/app/sky-briefing/id575888010)

This app provides private and student pilots with essential preflight information. Access up-to-date weather observations, forecasts, NOTAMs, and runway data for thousands of airports globally. Visualize weather conditions graphically and view webcam images.

**Highlights:** Airport weather observations and forecasts, Graphical weather representation, NOTAMs, Runway and crosswind data, Webcam images

**Features:** macOS Compatibility

**In-app purchases:** none


### Dayfly

[App page](https://appshunter.io/ios/app/dayfly/id6779812090)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mayfly Pro | $3.99 | one-time |


## Frequently asked questions

### Is Sky Briefing free?

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

### Is Dayfly free?

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

### Do Sky Briefing or Dayfly have ads?

Neither Sky Briefing nor Dayfly shows ads.

### Which is updated more often, Sky Briefing or Dayfly?

Sky Briefing ships an update every 7 months, and Dayfly fortnightly. Most recently, Sky Briefing was updated on October 4, 2026 and Dayfly on October 15, 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.*