# Hazard Notifier vs Global Surface Winds

The clearest difference is review sentiment: Hazard Notifier at 50% against Global Surface Winds's 0%. Hazard Notifier also leads on rating (3.8 vs 1.0) and ads (none vs shown). Global Surface Winds's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. Hazard Notifier sells 1 one-off in-app purchase. Global Surface Winds asks for nothing beyond the download.

Hazard Notifier holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 8 and 6 respectively. Written reviews point the same way: 50% of Hazard Notifier's written reviews are positive against 0% of Global Surface Winds's.

Hazard Notifier ships an update every 2 months, Global Surface Winds every 20 months. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Hazard Notifier | Global Surface Winds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (8 ratings)](https://appshunter.io/ios/app/hazard-notifier/id703558388/reviews)** | [1.0 (6 ratings)](https://appshunter.io/ios/app/global-surface-winds/id1046919266/reviews) |
| Number of ratings | **8** | 6 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 48 MB | 6 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ITDT LLC](https://appshunter.io/developer/703558391) | [corey hoggard](https://appshunter.io/developer/1042853133) |

## What reviewers say

### Hazard Notifier

[App page](https://appshunter.io/ios/app/hazard-notifier/id703558388)

Receive timely alerts for a wide range of potential hazards, including severe weather, natural disasters, and even space events. Customize notification ranges and types, and contribute to community safety by reporting emerging incidents.

**Highlights:** Customizable notification range and hazard types, Real-time hazard tracking on a map, User reporting of emerging events, Push notifications for critical alerts, Wide range of hazard categories including weather and natural disasters, Reporting statistics for users

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Version | $0.99 | one-time |


### Global Surface Winds

[App page](https://appshunter.io/ios/app/global-surface-winds/id1046919266)

Visualize global wind patterns with this interactive mapping application. It transforms data from the USDOC into an easy-to-use mobile tool for understanding wind conditions worldwide.

**Highlights:** Interactive wind mapping, Global wind data visualization, USDOC data integration, Mobile application interface, Ease of use

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

**In-app purchases:** none


## Frequently asked questions

### Is Hazard Notifier free?

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

### Is Global Surface Winds free?

Global Surface Winds is free to download, with no in-app purchases.

### Which has better reviews, Hazard Notifier or Global Surface Winds?

Hazard Notifier is rated higher. Hazard Notifier averages 3.8 out of 5 from 8 ratings, while Global Surface Winds averages 1.0 from 6 ratings.

### Do Hazard Notifier or Global Surface Winds have ads?

Global Surface Winds shows ads; Hazard Notifier does not.

### Which is updated more often, Hazard Notifier or Global Surface Winds?

Hazard Notifier ships an update every 2 months, and Global Surface Winds every 20 months. Most recently, Hazard Notifier was updated on October 23, 2026 and Global Surface Winds on October 29, 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.*