Wind God — Aeolus

Calibrated for your spot

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Worth the drive? Now you finally know. Two hours to the spot and then... nothing? Never again: Wind God tells you when the wind kicks in and whether it's 12, 20 or 30 knots. More accurate than any weather model. Your spot doesn't exist in any weather model. So we build it. Global weather models compute grid cells of 2 kilometers and more, your home spot is literally invisible in them: no lake, no shoreline, no venturi effect, no thermal edge. Yet that's exactly where your wind is born. Aeolus closes this gap with an approach that until now existed only in research. WHAT YOU GET • 25 spots across nine countries: Bavaria: Kochelsee, Walchensee, Ammersee, Starnberger See, Chiemsee, Alpsee, Forggensee Lake Constance: Friedrichshafen, Konstanz, Güttingen Italy: Lago di Garda, Lake Como (North), Reschensee Worldwide: El Gouna and Selena Bay (Egypt), Tarifa and Valdevaqueros (Spain), Cape Town (Bloubergstrand, Muizenberg), Taíba and Lagoa do Patos (Brazil), the Hel peninsula with three spots (Poland), Podersdorf on Lake Neusiedl (Austria) New spots start out "in testing" and go live once they pass our checks. The library keeps growing. • Kiteable probability for every hour, including your personal threshold (foil? big kite? set your limit). • Wind alerts that are truly yours: set them per spot, wind direction, strength, minimum duration, and how confident the forecast has to be. • Wind windows in your calendar: subscribe your favourites and the events add themselves and keep themselves up to date. • Tell us how it went: one rating per spot and day, wind speed and direction hour by hour. That's how we see where we were off. • Regime intelligence: foehn and thermals are different physics, our models treat them that way. • Instant updates with every weather-model run, precomputed, the answer arrives immediately. • Tidy by default: one number, one curve, done. Want more? Switch on expert mode for the dials and the probability curve. Aeolus is not another weather widget. It's a research program growing into your pocket, built by simulation specialists, tested in the field, computed with the physics of your spot. THE AEOLUS PROGRAM: A DIGITAL TWIN FOR EVERY SPOT Every spot gets a complete digital twin: real topography on a 50-meter grid, terrain roughness, water surfaces with their temperature, the energy balance of every single slope. On top of that, a 3D multiphysics flow simulation (CFD + turbulence modeling) computes the wind field physically: moist air, solar radiation, thermals, foehn, lake breeze, alpine lake, foehn corridor or coastal lagoon, every spot's physics under the same laws of nature. The first chapter is a showpiece in the Bavarian Alpine foothills: Kochelsee and Walchensee, two lakes, 200 meters of elevation apart, a mountain ridge in between, in a single simulation domain. One model, both spots, including their interaction: whether foehn- or thermally driven, both run in the same computation. THE NEURAL SURROGATE The full simulation costs hundreds to thousands of CPU hours per spot. That's why the heart of the program is a 3D neural surrogate model: a neural network trained on very many complete 3D simulations per spot. It doesn't memorize weather statistics, it learns to solve the physics itself: the result of the simulation in seconds on a single GPU, a speedup factor of 10,000 to 100,000. The same technology class NVIDIA's FourCastNet used to accelerate global weather forecasting from supercomputer hours to GPU seconds, except FourCastNet computes the globe at 25 kilometers. Aeolus brings this class to your spot: 50 meters. And because the training data comes from our own simulation, a new spot doesn't need ten years of measurement history, just geodata. The wind has always been there. Now you can see it coming.

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8 new spots, now 25 across nine countries: from Cape Town via Tarifa to Brazil. New: tide curve in the spot detail with high/low water and tide range at a glance. The weekly outlook now shows clear daily pills. Search finds spots by town and country too. And if you like Aeolus, you can drop something in the tip jar in Settings. Everything stays free.

Version 1.6

The developer, Fritz Valentin Hoffmeister, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Fritz Valentin Hoffmeister
Size
  • 3.5 MB
Category
  • Weather
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Huge Tailwind $45.00
  • Big Tailwind $18.00
  • Medium Tailwind $9.00
  • Small Tailwind $4.00
  • Learn More
Copyright
  • © 2026 Aeolus
  • Privacy Policy