Comparison

Hazard Notifier vs Aurora Expert

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

Aurora Expert

Features
Read full description

Live data from NOAA’s new solar wind sentinel SOLAR-1: Aurora Expert tells you whether you can see the aurora tonight – at your place, with clouds, darkness and the moon. FREE • Tonight’s chance at your place, in five levels from “Very low” to “Very likely” – and every value says when it is from. • Why this verdict? Tap ⓘ: the factors behind the chance and the Kp it takes where you are. • Forecast for up to three nights: Kp, how far the aurora reaches, and the clouds when Apple Weather provides them. • Globe with a time scrubber: NOAA’s aurora oval twelve hours back and ahead, with the day and night side. For both hemispheres. • An alert for your home when the aurora activity there reaches the threshold and it is dark – with a test alert, so you know it arrives. • Red light and field mode for outside: compass and the key values, and your eyes stay adapted to the dark. • Live Activity and widgets for the Lock Screen and StandBy. • Journal with a season summary: for each place, from your own answers, how often you saw the aurora at each forecast level. • At Kp 7 or more, the storm cockpit is open for one night without Aurora Pro. AURORA PRO – ONE PURCHASE, NO SUBSCRIPTION • Place alerts: alerts for every saved place within aurora range, your own threshold of 25, 50 or 75%, wake for strong activity. Save unlimited places. • Trip planner: the best spot for every night of your trip, with route and leave-by reminder. • Tonight from here: clearer places within a 30 to 90 minute drive. • Your best nights: season calendar and widget. • Storm cockpit: Deep Dive with solar wind, Kp history and raw data, substorm tracker, CME outlook and live tiles in field mode. • My nights: photos for your nights, a gallery and export as CSV or JSON. DATA Aurora activity (OVATION), Kp and storm warnings from NOAA SWPC, solar wind from NOAA SOLAR-1 / ACE at the Lagrange point L1, clouds from Apple Weather. No ads, no tracking.

Screenshots

Hazard Notifier4 screens
Aurora Expert4 screens

Verdict

The call

The clearest difference is update cadence: Aurora Expert at every 6 days against Hazard Notifier's every 2 months. On price, ads, in-app purchases and device support 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 Aurora Expert sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Hazard Notifier ships an update every 2 months, Aurora Expert every 6 days. Both last shipped on October 23, 2026.

Scorecard1 real difference · 9 level
Hazard Notifier versus Aurora Expert: the parameters behind the verdict, then further details
ParameterHazard NotifierAurora Expert
PriceFreeFree
Rating3.8 (8 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size48 MB14 MB
Age rating4+4+
DeveloperITDT LLCMark Baumann

In-app purchases

1 purchases

Hazard Notifier

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

Aurora Expert

One-time1
  • Aurora Export Pro Unlock$4.99

Questions

Is Hazard Notifier free?
Hazard Notifier is free to download, with in-app purchases available.
Is Aurora Expert free?
Aurora Expert is free to download, with in-app purchases available.
Do Hazard Notifier or Aurora Expert have ads?
Neither Hazard Notifier nor Aurora Expert shows ads.
Which is updated more often, Hazard Notifier or Aurora Expert?
Hazard Notifier ships an update every 2 months, and Aurora Expert every 6 days. Most recently, Hazard Notifier was updated on October 23, 2026 and Aurora Expert on October 23, 2026.

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