# Hazard Notifier vs Flowgraphy

The clearest difference is review sentiment: Flowgraphy at 100% against Hazard Notifier's 50%. Flowgraphy also leads on rating (4.8 vs 3.8) and update cadence (every 3 weeks vs every 2 months). Hazard Notifier's advantage is ads (none vs shown). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Hazard Notifier sells 1 one-off in-app purchase and Flowgraphy sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Flowgraphy holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 50% of Hazard Notifier's written reviews are positive against 100% of Flowgraphy's.

Hazard Notifier ships an update every 2 months, Flowgraphy every 3 weeks. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Hazard Notifier | Flowgraphy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (8 ratings)](https://appshunter.io/ios/app/hazard-notifier/id703558388/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/flowgraphy-weather/id6746356002/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 169 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ITDT LLC](https://appshunter.io/developer/703558391) | [Flowgraphy Studio](https://appshunter.io/developer/1816404933) |

## 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 |


### Flowgraphy

[App page](https://appshunter.io/ios/app/flowgraphy-weather/id6746356002)

This weather application transforms real-time data into visually appealing scenes and an intuitive interface. It allows users to understand current conditions like rain and temperature changes at a glance, making weather forecasting both clear and beautiful.

**Highlights:** Graceful scene visualizations, Intuitive interface, Real-time weather data, Rain and temperature display, Sky condition overview, Day planning assistance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flowgraphy+ (Monthly) | $0.99 | per month |
| Flowgraphy+ (Annual) | $9.99 | per year |


## Frequently asked questions

### Is Hazard Notifier free?

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

### Is Flowgraphy free?

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

### Which has better reviews, Hazard Notifier or Flowgraphy?

Flowgraphy is rated higher. Hazard Notifier averages 3.8 out of 5 from 8 ratings, while Flowgraphy averages 4.8 from 5 ratings.

### Do Hazard Notifier or Flowgraphy have ads?

Flowgraphy shows ads; Hazard Notifier does not.

### Which is updated more often, Hazard Notifier or Flowgraphy?

Hazard Notifier ships an update every 2 months, and Flowgraphy every 3 weeks. Most recently, Hazard Notifier was updated on October 23, 2026 and Flowgraphy on October 30, 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.*