Comparison

Hazard Notifier vs Central Alert Repository

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

Central Alert Repository

Access a real-time archive of nationwide emergency alerts, including severe weather warnings and official emergency messages. Stay informed about local threats and national crises with instant updates and a searchable history.

Highlights
  • Real-time emergency alert archive
  • Nationwide alert access
  • Severe weather warnings
  • Searchable alert history
  • Instant updates
  • User-friendly interface
Features
Read full description

Stay aware with Central Alert Repository, the real-time emergency alert archive by the Global Weather & EAS Society. Central Alert Repository is the ultimate real-time emergency alert archive, developed by the Global Weather & EAS Society. Stay ahead of emergencies with instant access to official alerts, severe weather warnings, and other emergency messages from across the nation. Whether tracking local threats or monitoring national crises, Central Alert Repository ensures you're always informed. With a user-friendly interface, searchable archives, and real-time updates, Central Alert Repository is your trusted source for staying prepared and aware.

Screenshots

Hazard Notifier4 screens
Central Alert Repository3 screens

Verdict

The call

The clearest difference is review sentiment: Central Alert Repository at 94% against Hazard Notifier's 50%. Central Alert Repository also leads on rating (4.8 vs 3.8) and in-app purchases (none vs 1). On price, update cadence, ads 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. Central Alert Repository asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Central Alert Repository holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Central Alert Repository has 53 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 50% of Hazard Notifier's written reviews are positive against 94% of Central Alert Repository's.

UpkeepUpdate frequency

Hazard Notifier ships an update every 2 months, Central Alert Repository every 5 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Hazard Notifier versus Central Alert Repository: the parameters behind the verdict, then further details
ParameterHazard NotifierCentral Alert Repository
PriceFreeFree
Rating3.8 (8 ratings)4.8 (53 ratings) — better
Positive reviews50.0% of reviews93.8% of reviews — better
Number of ratings853 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size48 MB9 MB
Age rating4+4+
DeveloperITDT LLCGlobal Weather & EAS Society, LLC

Customer experience

Hazard Notifier

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

Central Alert Repository

All ratings53 ratings
Positive96.2%
Neutral1.9%
Negative1.9%
Written reviews32 reviews
Positive93.8%
Neutral3.1%
Negative3.1%

Bugs and requests

Hazard Notifier

Not enough reviews yet to summarise bugs or requests.

Central Alert Repository

Reported bugs

1 issue
  • Spammed with non-local alerts

Requested features

2 requests
  • Location filtering
  • Additional features and improvements

In-app purchases

1 purchases

Hazard Notifier

One-time1
  • Ad-Free Version$0.99
None

Central Alert Repository

No in-app purchases

Questions

Is Hazard Notifier free?
Hazard Notifier is free to download, with in-app purchases available.
Is Central Alert Repository free?
Central Alert Repository is free to download, with no in-app purchases.
Which has better reviews, Hazard Notifier or Central Alert Repository?
Central Alert Repository is rated higher. Hazard Notifier averages 3.8 out of 5 from 8 ratings, while Central Alert Repository averages 4.8 from 53 ratings.
Do Hazard Notifier or Central Alert Repository have ads?
Neither Hazard Notifier nor Central Alert Repository shows ads.
Which is updated more often, Hazard Notifier or Central Alert Repository?
Hazard Notifier ships an update every 2 months, and Central Alert Repository every 5 weeks. Most recently, Hazard Notifier was updated on October 23, 2026 and Central Alert Repository on October 24, 2026.

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