Windy.com

What it does

Windy.com is far more than a simple weather forecast app. It serves as a comprehensive and professional-grade meteorological tool, providing incredibly detailed weather data through an interactive map interface. The app is designed for users who need more than just a daily temperature forecast, such as pilots, sailors, surfers, storm chasers, and serious weather enthusiasts.

Where it shines

Windy's strength lies in the depth and breadth of its data. A standout feature is the ability to compare different forecast models side-by-side (01:44), allowing knowledgeable users to assess discrepancies and make more informed decisions. The app also includes professional tools rarely seen in consumer applications, like the detailed 'Sounding forecast' chart (05:10), which visualizes atmospheric conditions at different altitudes. Furthermore, the integration of live webcams (01:08) provides real-world visual context to the forecast data, building a layer of trust and immediacy.

UX highlights

Interactive Timeline: The timeline scrubber at the bottom of the map allows for fluid navigation through future forecast hours and days, with the map data updating seamlessly in real-time (01:25).
Powerful Layering System: The app provides an extensive menu of over 40 distinct weather maps, from wind and rain to air quality and wave heights, which can be easily toggled (02:22).
Distance & Planning Tool: A practical tool allows users to measure distances and plan routes directly on the map (02:51), which is invaluable for aviation and marine navigation.
Data-Rich Context Menus: A long press anywhere on the map brings up a menu with quick access to detailed forecasts, webcams, and advanced tools for that specific point.
Unobtrusive Menus: Despite its complexity, the app keeps the primary map view clean. Core navigation is handled by a simple icon bar, with deeper features nested in the main menu.

Monetization & growth

Monetization is handled through a 'Windy Premium' subscription. A soft paywall appears after some initial app usage (00:33), which avoids alienating new users. The paywall clearly lists the benefits of upgrading, such as 1-hour forecast steps and a 10-day outlook. It presents two annual pricing options, one of which highlights a cost saving. The app doesn't seem to offer a free trial, focusing instead on converting users who have already experienced the value of the free version.

Who it’s for

This app is built for a discerning audience that requires detailed, reliable, and multi-faceted weather data. Its primary users are likely professionals and hobbyists in fields like aviation, sailing, surfing, paragliding, and fishing. While a casual user can certainly check the basic forecast, the app's true power is unlocked by those who can interpret its more complex charts and compare its various data models.

Notes & opportunities

The sheer volume of data and features can be overwhelming for a first-time, non-expert user. The onboarding is minimal, which is great for speed but offers little guidance on how to use the more advanced tools. Some interactions, like finding the 'compare forecasts' feature, rely on user discovery rather than explicit direction. Adding an optional, guided tour for specific features could help broaden the app's appeal without sacrificing its power-user focus.