Comparison

Storm Radar vs ARMAS

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

Head to head
About

Storm Radar

This app provides advanced weather radar and storm tracking with real-time alerts for rain, severe weather, and lightning. It offers detailed visualizations of weather patterns, future radar projections, and customizable map layers for tracking storms like hurricanes and tornadoes.

Highlights
  • Expanded weather map layers (wind, lightning, tropical tracks)
  • High-resolution single site radar
  • AI Weather Assistant for real-time insights
  • Smarter storm alerts (rain, NOAA warnings)
  • 6-72 hour future radar projections
  • Live local storm warnings and advisories
  • Lightning alerts
Features
Read full description

Welcome to the NEW Storm Radar, the next generation of weather radar and storm tracking. We’ve re-imagined the app with smarter insights, powerful tools, and a fresh design built on the trusted accuracy of The Weather Channel. Track incoming rain with future radar, watch storm movement and timing on a live map, and follow every storm with accurate live radar. POWERFUL WEATHER & RADAR FEATURES • Expanded weather map layers: Overlay precipitation, hail, wind, lightning, tropical tracks, and storm intensity on detailed maps • Advanced high-resolution single site radar — accurate live radar to track storms in crystal-clear detail • AI Weather Assistant™: Your personal meteorologist for real-time insights • Smarter storm alerts: Rain alerts, NOAA severe weather warnings, and more PLAN AHEAD WITH POWERFUL WEATHER INTELLIGENCE • Visualize changing weather patterns and incoming wind and rain in vivid detail • Track incoming rain and know exactly when and where the storm will hit, with 6 hours of global future radar and up to 72 hours of future radar in the US • Get real-time precipitation alerts before the rain begins STAY SAFE WITH REAL-TIME STORM TRACKING • Receive live local storm warnings, watches, and advisories • Watch lightning strikes and storm cells on the live map, with lightning alerts for your location • Customize map layers to track severe conditions like hurricanes, tropical storms, tornadoes, and cyclones • Use Storm Tracks to see storm movement, timing, and intensity on the map, with up to 30 advanced tracking features SEE MORE WITH DETAILED WEATHER DATA • Add overlays such as wind speed, temperature, and more to your weather radar GO PREMIUM FOR FULL STORM & WEATHER POWER Unlock the complete Storm Radar experience to level up your storm tracking experience, with: • High-res Single Site Radar • Advanced map layers • 72-Hour Future Radar • Expanded access to the AI Weather Assistant • Customizable weather widgets If you choose to purchase the Premium version of Storm Radar, subscription payments will be charged to your App Store account at confirmation of your purchase. • Storm subscription auto renews annually. • Cancel anytime in Settings > AppleID at least 24 hours before your renewal date to avoid charges. • Subscription payments will be charged to your account at confirmation of your purchase and upon commencement of each renewal term. PRIVACY • Our Privacy Policy can be viewed here: https://weather.com/en-US/twc/privacy-policy • Our Terms of Use can be viewed here: http://www.weather.com/common/home/legal.html FEEDBACK • Your feedback is important to us! If you love our weather app, please rate and review us in the App Store. • If you have any questions or suggestions, please email us at twcstormradar@weather.com

About

ARMAS

Real-time radiation monitoring for aviation and space weather awareness. Pairs with hardware detectors or provides data from global systems for pilots and travelers.

Highlights
  • Real-time radiation monitoring
  • Space weather awareness
  • Pairs with ARMAS Flight Modules
  • Detects various radiation types
  • Global airspace coverage
  • Data from ground and space systems
Features
Read full description

The Automated Radiation Measurements for Aerospace Safety (ARMAS) program has been developed with NASA funding. It provides accurate, real-time radiation monitoring along with radiation and space weather awareness for the global airspace up to 100 km altitude. The ARMAS app is part of this program and does two tasks: - it pairs with and controls the 7th generation ARMAS Flight Module (FM7) and the 12th generation ARMAS Flight Module (FM12) radiation detector (purchased separately) to provide the highest quality, real-time dose and dose rates in aircraft and suborbital vehicles. It is sensitive to radiation from all sources including heavy ions, alphas, protons, neutrons, electrons, and gamma-rays. - it provides radiation awareness by hosting real-time space weather data coming from dozens of ground- and space-based systems that report all the information relevant to radiation processes without requiring a purchase of the FM7 or FM12. ARMAS is the 'gold-standard' in real-time radiation monitoring and awareness used by professional pilots, business travelers, and commercial space tourists. The ARMAS program is developed and operated by Space Environment Technologies, which specializes in space weather as an official NOAA "Weather Ready Nation" Ambassador.

Screenshots

Storm Radar4 screens
ARMAS4 screens

Verdict

The call

Storm Radar and ARMAS both sit at 4.5 stars, but that hides the real split: 100% of ARMAS's written reviews are positive against 65% of Storm Radar's. ARMAS also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.2). Storm Radar's advantage is ratings volume (137K vs 6) and update cadence (every 2 weeks vs every 2 months). On price, rating, 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. Storm Radar sells 7 in-app purchases, starting at $0.99 per month and ARMAS sells 3 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Storm Radar holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Storm Radar has 137K ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 65% of Storm Radar's written reviews are positive against 100% of ARMAS's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Storm Radar ships an update every 2 weeks, ARMAS every 2 months. The most recent releases landed on November 7, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 5 level
Storm Radar versus ARMAS: the parameters behind the verdict, then further details
ParameterStorm RadarARMAS
PriceFreeFree
Rating4.5 (137K ratings) — better4.3 (6 ratings)
Positive reviews64.7% of reviews100.0% of reviews — better
Number of ratings137K — better6
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#19 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.214.0 — better
Further details — not scored
Size313 MB38 MB
Age rating4+4+
DeveloperThe Weather Channel InteractiveSpace Environment Technologies, LLC.

Customer experience

Storm Radar

All ratings130,788 ratings
Positive88.2%
Neutral2.7%
Negative9.1%
Written reviews2,365 reviews
Positive64.7%
Neutral5.7%
Negative29.6%

ARMAS

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Storm Radar

Reported bugs

5 issues
  • App crashes frequently
  • Radar and forecast data not loading properly
  • Saved locations not working
  • Inconsistent performance across devices
  • Issues with weather alerts and notifications

Requested features

5 requests
  • Bring back old Storm app features
  • More customization options
  • Improved radar and storm tracking
  • Better integration with other weather data sources
  • Ability to view weather history and trends

ARMAS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Storm Radar

Subscriptions7
  • Remove Ads$0.991 Month
  • Storm Premium$1.997 Days
  • Storm Premium$3.991 Month
Show 4 more
  • Storm Premium +$4.991 Month
  • Storm Premium7 Days trial$19.991 Year
  • Storm Premium1 Month trial$19.991 Year
  • Storm Premium +7 Days trial$29.991 Year
3 purchases

ARMAS

Subscriptions2
  • Premier$2.991 Year
  • Professional$2.991 Year
One-time1
  • Member$2.99

Questions

Is Storm Radar free?
Storm Radar is free to download, with in-app purchases available.
Is ARMAS free?
ARMAS is free to download, with in-app purchases available.
Which has better reviews, Storm Radar or ARMAS?
Storm Radar is rated higher. Storm Radar averages 4.5 out of 5 from 137K ratings, while ARMAS averages 4.3 from 6 ratings.
Do Storm Radar or ARMAS have ads?
Storm Radar shows ads; ARMAS does not.
Which is updated more often, Storm Radar or ARMAS?
Storm Radar ships an update every 2 weeks, and ARMAS every 2 months. Most recently, Storm Radar was updated on November 7, 2026 and ARMAS on November 2, 2026.

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