Comparison

Hazard Notifier vs RainVis

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

RainVis

Visualize detailed weather data with customizable forecasts. Track rain, temperature, wind, tides, and solunar timing in one view. Ideal for outdoor planning and coastal activities.

Highlights
  • Customizable forecast metrics
  • Visual hourly previews
  • Expandable hourly charts
  • Coastal planning tools
  • Rain-focused forecast
  • Current conditions
  • Radar with history
Features
Read full description

RainVis turns detailed weather data into a visual forecast you can understand at a glance. Build your own forecast by choosing the details that matter most to you. Instead of jumping between separate hourly, daily, wind, rain, tide, and radar screens, RainVis lets you customize the forecast view around your plans. Track rain chance, accumulation, temperature, wind, gusts, humidity, pressure, dew point, cloud cover, tide height, tidal coefficient, and solunar timing in one visual forecast. Expand any day to inspect the hourly chart, compare multiple metrics together, and see when conditions line up. RainVis is especially useful for coastal fishing, boating, surfing, and outdoor planning, where the best window often depends on more than one number. Add tide and solunar details to your forecast to see tide movement, coefficient, moon timing, and major/minor activity periods alongside weather. Features: - Build-your-own forecast with customizable metrics - Compact daily forecast cards with visual hourly previews - Expandable hourly charts for rain, temperature, wind, gusts, humidity, pressure, dew point, cloud cover, tide, and solunar data - Coastal planning tools with tide height, tidal coefficient, NOAA tide source labels, moon data, and solunar activity periods - Rain-focused forecast showing chance, amount, timing, and accumulation - Current conditions for searched cities, saved places, or your current location - Radar with recent NEXRAD reflectivity history - iOS widgets for quick glanceable forecasts - Optional RainVis account for syncing Pro access across devices RainVis works immediately without signup. Free users can view the core visual forecast experience. RainVis Pro unlocks deeper planning features, including 15-day forecast trends, extended hourly forecast charts, longer radar history where available, live activities, and account-based access across iOS and web. Weather forecasts and coastal conditions can change quickly. Always follow official alerts and emergency guidance from the National Weather Service, NOAA, and local authorities. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rainvis.com/privacy

Screenshots

Hazard Notifier4 screens
RainVis4 screens

Verdict

The call

The clearest difference is review sentiment: RainVis at 100% against Hazard Notifier's 50%. RainVis also leads on rating (5.0 vs 3.8) and update cadence (every 2 days vs every 2 months). On price, ratings volume, ads and in-app purchases 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 RainVis sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

RainVis holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 50% of Hazard Notifier's written reviews are positive against 100% of RainVis's.

UpkeepUpdate frequency

Hazard Notifier ships an update every 2 months, RainVis every 2 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Hazard Notifier versus RainVis: the parameters behind the verdict, then further details
ParameterHazard NotifierRainVis
PriceFreeFree
Rating3.8 (8 ratings)5.0 (3 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings8 — better3
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size48 MB15 MB
Age rating4+4+
DeveloperITDT LLCBrian Hakel

Customer experience

Hazard Notifier

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

RainVis

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Hazard Notifier

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

RainVis

Subscriptions2
  • RainVis Pro Monthly$1.991 Month
  • RainVis Pro Annual$14.991 Year

Questions

Is Hazard Notifier free?
Hazard Notifier is free to download, with in-app purchases available.
Is RainVis free?
RainVis is free to download, with in-app purchases available.
Which has better reviews, Hazard Notifier or RainVis?
RainVis is rated higher. Hazard Notifier averages 3.8 out of 5 from 8 ratings, while RainVis averages 5.0 from 3 ratings.
Do Hazard Notifier or RainVis have ads?
Neither Hazard Notifier nor RainVis shows ads.
Which is updated more often, Hazard Notifier or RainVis?
Hazard Notifier ships an update every 2 months, and RainVis every 2 days. Most recently, Hazard Notifier was updated on November 1, 2026 and RainVis on November 5, 2026.

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