Wind God — Aeolus
Calibrated for your spot
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
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
• Spots today: Reschensee, Walchensee, Ammersee, Kochelsee, Lago di Garda, Egypt El Gouna — plus 7 in testing: Starnberger See, Alpsee, Chiemsee, Forggensee, Lake Constance (Friedrichshafen, Güttingen, Konstanz). 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.
• 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.
• Free to use throughout 2026. After that, Aeolus will likely cost a small fee — covering compute costs and the development of new spots.
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 physics is fascinating. But what matters to you is: is the drive to the lake worth it?
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. 100,000× faster than the physics it learns from. Physics accuracy, app speed, scaling by blueprint.
The wind has always been there. Now you can see it coming.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Small hint in Settings: if you subscribe to the wind calendar without any favorite spots, Aeolus now tells you the calendar stays empty until you star your first spot.
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:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Fritz Valentin Hoffmeister
- Size
- 2.7 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.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Aeolus