Storm Window vs Fat Tail Weather
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Fat Tail Weather
Get real-time weather data directly from airport sensors, offering precise measurements instead of model estimates. View current conditions, forecasts, and aviation-inspired color codes for clarity. Know exactly what's happening with the weather, no guesswork involved.
- Live airport sensor readings
- Precise weather measurements
- Hourly and 7-day forecasts
- Aviation color-coded conditions
- Compass-guided wind arrow
- Multiple location saving
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Fat Tail is weather without the guesswork. Most weather apps show you a model's estimate, interpolated for your area. Fat Tail shows you what's actually happening — live readings from professionally maintained, calibrated sensors at the airports nearest you. It's the same data pilots trust before takeoff, decoded into a clean, bold report anyone can read. REAL MEASUREMENTS, NOT ESTIMATES Temperature, feels-like, humidity, dew point, wind, gusts, visibility, pressure, and cloud layers — measured at the source and updated the moment conditions change, not just on the hour. YOUR LOCAL FIELD REPORT Open the app and it finds the closest reporting stations automatically. See exactly which airport your reading comes from, how far away it is, and how fresh the observation is. Compare nearby stations with one tap. A WIND ARROW THAT ACTUALLY POINTS Enable the compass and the wind arrow tracks as you turn — it always points the true direction the wind is moving, like holding a hand compass. FORECASTS FROM NOAA'S BEST Hourly and 7-day forecasts powered by the National Blend of Models — the multi-model blend NWS forecasters themselves start from. Rain, snow, and storm chances shown big and clear, with the peak hour called out. MORE AT A GLANCE Conditions rated with aviation color codes — green when it's clear, red when it's rough Sunrise and sunset, calculated for your exact location Save up to 10 locations for one-tap checks The raw station report included, for the curious No accounts. No ads. No tracking. Your location never leaves your phone. Weather's biggest days are the rare ones — the fat tail. Know what's really out there.
Screenshots
Verdict
The clearest difference is in-app purchases: Fat Tail Weather at none against Storm Window's 4. Fat Tail Weather also leads on update cadence (daily vs every 5 days) and ratings volume (5 vs 1). Storm Window's advantage is device support (3 vs 1). On price, rating, review sentiment and ads 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
Both are free to download. Storm Window sells 4 in-app purchases, starting at $2.99 per month. Fat Tail Weather asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Storm Window against 5.0 for Fat Tail Weather. That said, the two scores are not equally well evidenced: Fat Tail Weather has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Storm Window ships an update every 5 days, Fat Tail Weather daily. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.
| Parameter | Storm Window | Fat Tail Weather |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 5 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 48 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Schumacher | Cameron Melcher |
Customer experience
Storm Window
Fat Tail Weather
In-app purchases
Storm Window
- Storm Window Pro Monthly$2.991 Month
- Pro+ Monthly$4.991 Month
- Storm Window Pro Annual7 Days trial$19.991 Year
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- Pro+ Annual7 Days trial$29.991 Year
Fat Tail Weather
No in-app purchases
Questions
Is Storm Window free?
Is Fat Tail Weather free?
Which has better reviews, Storm Window or Fat Tail Weather?
Do Storm Window or Fat Tail Weather have ads?
Which is updated more often, Storm Window or Fat Tail Weather?
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