Comparison

Storm Window vs FirstDrop Rain Radar

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

Head to head
About

Storm Window

This app provides clear outdoor risk guidance based on hourly weather data, highlighting safe times for outdoor activities. It accounts for lightning, heat, wind, air quality, and rain, offering tailored advice for various pursuits.

Highlights
  • Clear outdoor risk guidance
  • 48-hour hourly risk timeline
  • Lightning-aware storm risk
  • Heat, air quality, wind, UV, rain, snow context
  • National Weather Service alert awareness
  • Home Screen widgets and Apple Watch support
Features
Read full description

Storm Window helps you find safer outdoor windows when weather risk is changing. Instead of giving you another raw forecast, Storm Window turns hourly weather data into a clear outdoor risk timeline, highlighting when conditions look clear, marginal, stormy, or severe. Built for runners, cyclists, walkers, golfers, beach days, trail time, work crews, and anyone who plans around lightning, heat, wind, air quality, and rain. Core features: • Clear "go / wait" style outdoor risk guidance • 48-hour hourly risk strip, shown as bars or dots • Lightning-aware storm risk • Heat, air quality, wind, UV, rain, and snow context • National Weather Service alert awareness • Current-location planning, plus one saved place • Home Screen widgets and Apple Watch support • Built-in explanations of what's driving each hour's risk Storm Window Pro adds: • Multiple saved locations • Activity-specific risk profiles (runner, cyclist, golfer, and more) • Custom activity profiles • Personal heat and AQI sensitivity tuning • Full hourly detail on tap • Driest-stretch highlight within your safe window • Per-location widgets and complications Storm Window Pro+ adds: • Trips: pin an upcoming event and get its own safe-window forecast and alerts • "Should I Go?" activity-aware guidance • Forecast change reviews and 48-hour forecast summaries • Apple Intelligence-powered risk explanations on supported devices — all features work without it Storm Window uses deterministic risk rules for its core safety assessment. Pro+ guidance does not replace the underlying risk rating. Storm Window is forecast guidance, not a guarantee of safe conditions. Weather can change quickly. When thunder roars, go indoors. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FirstDrop Rain Radar

Features
Read full description

FirstDrop tells you when rain will reach where you are, before it does. THE IMPORTANT PART FIRST The app opens with a clear answer: "Rain in 14 min." Or: "Dry for the next two hours." The radar is at the top, with measurements underneath. No searching required. ALERTS THAT REACH YOU Get a push notification when rain is on the way. See a countdown on your lock screen as it approaches, or use the home screen widget. You don't need to open the app to get the answer. LIVE RAIN RADAR Animated rain radar powered by data from DMI, MET Norway, SMHI, FMI and EUMETNET OPERA. The radar covers Europe and shows how hard it is raining, measured by a national radar in the Nordics and estimated from the European radar composite elsewhere. Drag the timeline to see where the rain and showers are heading. SEVERE WEATHER IS FREE FOR EVERYONE Official weather warnings are sent directly to you, whether you pay for FirstDrop or not. The app does not replace official warnings. It passes them on and adds its own radar on top. FREE • Live rain radar and nowcast • Rain alerts for up to 3 locations • Follow-me alerts based on where you are right now • Lightning on the radar, widgets and weather warnings FIRSTDROP PREMIUM • Personal alerts: frost, slippery roads, snow, strong gusts, heat, lightning, and when the rain stops • Commute alerts: when rain will hit your trip, and when to leave to stay dry • Plan a day up to ten days ahead, with a heads-up the evening before • Rain history for your places, and the next dry stretch for a run • The most likely forecast, with the weather models weighted by how well they have matched the measured rain, and 48 hours of radar playback • Unlimited locations • Heavy rain alerts in the Nordics, so you are notified while there is still time to act • Quiet hours, which hold back rain alerts while you sleep $9.99/year or $1.99/month, with a 7-day free trial. Shareable with your family. Prices vary by region. PRIVACY Your location is personal data and is treated accordingly. Your data stays in the EU, is never sold and is not used to track you. No banner ads anywhere in the app. SUBSCRIPTION TERMS FirstDrop Premium costs $9.99/year or $1.99/month; the price in your region is shown in the app before you buy. The first 7 days are free. The subscription renews automatically unless cancelled at least 24 hours before the current subscription period ends. Payment is charged to your Apple Account when the purchase is confirmed. You can manage or cancel your subscription in your App Store settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://firstdrop.dk/privatlivspolitik

Screenshots

Storm Window4 screens
FirstDrop Rain Radar4 screens

Verdict

The call

The clearest difference is ads: Storm Window at none against FirstDrop Rain Radar's shown. FirstDrop Rain Radar's advantage is update cadence (every 2 days vs every 5 days) and iOS requirement (16.4 vs 26.0). On price, 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. Storm Window sells 4 in-app purchases, starting at $2.99 per month and FirstDrop Rain Radar sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Storm Window ships an update every 5 days, FirstDrop Rain Radar every 2 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Storm Window versus FirstDrop Rain Radar: the parameters behind the verdict, then further details
ParameterStorm WindowFirstDrop Rain Radar
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 daysEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS26.016.4 — better
Further details — not scored
Size47 MB70 MB
Age rating4+4+
DeveloperDaniel SchumacherAllan Noer

In-app purchases

4 purchases

Storm Window

Subscriptions4
  • Storm Window Pro Monthly$2.991 Month
  • Pro+ Monthly$3.991 Month
  • Storm Window Pro Annual7 Days trial$19.991 Year
Show 1 more
  • Pro+ Annual7 Days trial$29.991 Year
2 purchases

FirstDrop Rain Radar

Subscriptions2
  • FirstDrop Premium7 Days trial$1.991 Month
  • FirstDrop Premium7 Days trial$9.991 Year

Questions

Is Storm Window free?
Storm Window is free to download, with in-app purchases available.
Is FirstDrop Rain Radar free?
FirstDrop Rain Radar is free to download, with in-app purchases available.
Do Storm Window or FirstDrop Rain Radar have ads?
FirstDrop Rain Radar shows ads; Storm Window does not.
Which is updated more often, Storm Window or FirstDrop Rain Radar?
Storm Window ships an update every 5 days, and FirstDrop Rain Radar every 2 days. Most recently, Storm Window was updated on October 10, 2026 and FirstDrop Rain Radar on October 8, 2026.

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