Comparison

Hazard Notifier vs Flowgraphy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Hazard Notifier

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
Read full description

Hazard Notifier is a unique, highly customizable application, specifically developed to deliver information concerning potentially unsafe events in a simple yet straightforward way. With push notifications and distinctive sounds, Hazard Notifier sends the information you want to know directly to your phone, clearly and informatively. All you have to do is open the application and you can immediately watch and track developing hazards on a map in relation to your location. With weather radar and hazard icons, you will be able to see exactly what is going on and where. When using the application, you are completely free to adjust the range of the area in which you wish to receive notifications, as well as choose what kind of hazards you would like to be notified of. In addition, Hazard Notifier’s exclusive reporting service allows users to report events that have just begun to occur around them, which can help notify others about possibly unsafe events before they have even been formally declared. This application is not just limited to reporting weather. Hazard Notifier reports events involving: • Tornadoes • Severe Thunderstorms • High Winds • Hail • Lightning • Flooding • Heavy Rain • Snow • Freezing Rain • Ice • Dense Fog • Dust Storms • Fire • Hurricanes • Tropical Storms • Earthquakes • Tsunamis • Volcanoes • Debris Flow • Asteroids With Hazard Notifier, you will not have to spend as much time sifting through slews of disorganized information on the latest environmental events from news programs and web pages. Hazard Notifier will clearly display events in relation to where you are. If you find yourself wishing to stay informed of turbulent conditions, yet are unable to actively access the latest weather or news reports, Hazard Notifier will send you push notifications of potentially unsafe events in your area.

About

Flowgraphy

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
Read full description

A weather app, reimagined. Flowgraphy turns real‑time data into graceful scenes and an intuitive interface that together reflect today’s rain, temperature changes, and the sky ahead — all at a glance. Whether you’re planning your day or simply enjoying the view, Flowgraphy lets you feel the forecast — clearly and beautifully. Terms of Use: https://www.flow-graphy.com/terms.html Privacy Policy: https://www.flow-graphy.com/privacy.html

Screenshots

Hazard Notifier4 screens
Flowgraphy4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Hazard Notifier ships an update every 2 months, Flowgraphy every 3 weeks. The most recent releases landed on October 23, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Hazard Notifier versus Flowgraphy: the parameters behind the verdict, then further details
ParameterHazard NotifierFlowgraphy
PriceFreeFree
Rating3.8 (8 ratings)4.8 (5 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings8 — better5
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size48 MB169 MB
Age rating4+4+
DeveloperITDT LLCFlowgraphy Studio

Customer experience

Hazard Notifier

All ratings8 ratings
Positive62.5%
Neutral12.5%
Negative25.0%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Flowgraphy

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Hazard Notifier

One-time1
  • Ad-Free Version$0.99
2 purchases

Flowgraphy

Subscriptions2
  • Flowgraphy+ (Monthly)$0.991 Month
  • Flowgraphy+ (Annual)1 Month trial$9.991 Year

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 28, 2026.

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