Comparison

AlerWX vs Storma

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

Head to head
About

AlerWX

Receive real-time National Weather Service alerts directly from your chosen Weather Forecast Offices. Stay informed about severe weather, watches, warnings, and critical emergency updates. Features include live feeds, 10-day forecasts, interactive radar, and push notifications.

Highlights
  • Live WFO Feeds
  • 10-Day Local Forecast
  • SPC/WPC Outlooks
  • Interactive Weather Radar
  • NOAA Weather Radio Streams
  • Push Notifications
  • Critical Alerts
Features
Read full description

AlerWX delivers real-time weather intelligence directly from the National Weather Service (NWS), giving you instant access to Weather Forecast Office (WFO) products, severe weather alerts, radar data, forecasts, and more—all in one powerful platform. Designed for emergency responders, storm spotters, weather enthusiasts, and anyone who depends on timely weather information, AlerWX helps you stay informed before, during, and after severe weather events. Features: • Live NWS Weather Forecast Office Feeds Follow your preferred National Weather Service Weather Forecast Offices and receive real-time access to forecasts, discussions, advisories, warnings, and other issued products. • 10-Day Local Forecasts Stay ahead of changing conditions with detailed local forecasts and current weather information for your area. • SPC & WPC Outlooks View the latest outlooks and guidance from the Storm Prediction Center (SPC) and Weather Prediction Center (WPC) directly within the app. • Interactive Weather Radar Track storms with a built-in interactive radar featuring advanced products including Super-Resolution Reflectivity, Super-Resolution Velocity, and Additional radar products and layers! • NOAA Weather Radio Streams Listen to community-operated NOAA Weather Radio streams provided through multiple resources! • Push Notifications Receive instant updates from your selected Weather Forecast Offices and stay informed as new products and alerts are issued. • Critical Emergency Alerts Customize alert types in app to be pushed as Critical Alerts to your device! Users can also choose to receive Tornado Emergencies, Flash Flood Emergencies, and Tsunami Warnings nationwide, regardless of selected WFOs. • Widgets (iOS 18+) Stay informed at a glance with Current Conditions widgets available for iOS 18 and later. • Spotter Network Integration Connect with Spotter Network directly within AlerWX for enhanced situational awareness during active weather events. Whether you’re monitoring severe weather, tracking storms, or staying informed on daily forecasts, AlerWX provides the tools and information you need to stay prepared. Download AlerWX today and stay ahead of the storm.

About

Storma

Observe real-time thunderstorms globally with a live map and receive instant notifications for detected storms. Watch storms directly from your iPhone's lock screen or Dynamic Island.

Highlights
  • Real-time lightning strike map
  • Global storm observation
  • Customizable storm alerts
  • Live Activities integration
  • Lock screen storm viewing
Features
Read full description

Storma is the ultimate app for observing thunderstorms worldwide. It's easy to stay informed about weather phenomena! REAL-TIME MAP View lightning strikes live on the world map and explore storms around the globe. NOTIFICATIONS Create alerts and receive notifications when a storm is detected near a point of interest. LIVE ACTIVITIES Watch storms directly from your iPhone's lock screen or Dynamic Island with Live Activities.

Screenshots

AlerWX4 screens
Storma3 screens

Verdict

The call

The clearest difference is update cadence: AlerWX at weekly against Storma's monthly. AlerWX also leads on ratings volume (134 vs 12) and iOS requirement (16.1 vs 26.0). Storma's advantage is review sentiment (100% vs 81%) and device support (4 vs 2). On price, rating, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for AlerWX against 4.8 for Storma. That said, the two scores are not equally well evidenced: AlerWX has 134 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 81% of AlerWX's written reviews are positive against 100% of Storma's.

UpkeepUpdate frequency

AlerWX ships an update weekly, Storma monthly. The most recent releases landed on September 25, 2026 and September 3, 2026 respectively.

Scorecard5 real differences · 5 level
AlerWX versus Storma: the parameters behind the verdict, then further details
ParameterAlerWXStorma
PriceFreeFree
Rating4.8 (134 ratings)4.8 (12 ratings)
Positive reviews81.1% of reviews100.0% of reviews — better
Number of ratings134 — better12
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch — better
Requires iOS16.1 — better26.0
Further details — not scored
Size103 MB72 MB
Age rating+44+
DeveloperTar Heel Media Group, LLCBenjamin Pisano

Customer experience

AlerWX

All ratings134 ratings
Positive94.8%
Neutral0.7%
Negative4.5%
Written reviews37 reviews
Positive81.1%
Neutral2.7%
Negative16.2%

Storma

All ratings12 ratings
Positive91.7%
Neutral8.3%
Negative0.0%
Written reviews16 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AlerWX

No in-app purchases

None

Storma

No in-app purchases

Questions

Is AlerWX free?
AlerWX is free to download, with no in-app purchases.
Is Storma free?
Storma is free to download, with no in-app purchases.
Which has better reviews, AlerWX or Storma?
AlerWX and Storma are both rated 4.8 out of 5 on the App Store, from 134 and 12 ratings respectively.
Do AlerWX or Storma have ads?
Neither AlerWX nor Storma shows ads.
Which is updated more often, AlerWX or Storma?
AlerWX ships an update weekly, and Storma monthly. Most recently, AlerWX was updated on September 25, 2026 and Storma on September 3, 2026.

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