Klarwetter AI: Weather & Radar

Weather apps are notorious for exploiting location data: almost all of them sell minute-by-minute GPS locations to ad networks and data brokers. Klarwetter AI puts an end to that — while delivering a reliable forecast from up to 6 leading global weather models & AI. YOUR LOCATION STAYS WITH YOU — NOT WITH DATA BROKERS Weather is a public service, not a data business. Klarwetter AI is built from the ground up to be independent and privacy-first: • 0% Tracking & Zero Data Sale: No advertising SDKs, no advertising ID, no Google/Meta tracking, no fingerprinting, no profiling. • Dedicated Servers in Germany: Forecasts, radar maps, and location search run entirely on our own GDPR-compliant infrastructure in DE. • 1-km Rounded Location: Your exact coordinates never leave your smartphone. Technical server requests are rounded to ~1 km — far too coarse for an address or movement profile. • No User Account: Ready immediately without email, password, or registration. Favorites and settings remain 100% locally on your device. • Fair One-Time Purchase: All core features are free. The optional Pro upgrade is a one-time purchase of €3.99 — ad-free forever, without subscription traps. • Privacy-Centric AI: AI radar briefings do not store your location. Caching uses exclusively anonymized data. 6 GLOBAL WEATHER MODELS & AI: WHY A SINGLE NUMBER IS NOT ENOUGH Weather is highly dynamic. Most apps insist on showing a single rigid number ("Saturday 2 PM: 22°C") and conceal how uncertain that forecast actually is. That isn't accuracy — that is pseudo-accuracy. Klarwetter AI queries up to 6 leading independent global models and AI systems simultaneously: • ECMWF (European Centre — worldwide gold standard for forecasting accuracy) • ICON (European local domain & Germany — physical 2-km model) • AIFS (European AI model — learns atmospheric dynamics from decades of archives) • GFS (US NOAA — global benchmark for cross-checking) • GEM (Environment Canada — independent North American model) • AI-GFS (NOAA cutting-edge machine learning model) • Regional 1-km models (e.g. ICON-CH1, AROME for mountain valleys and coastal regions) THE GAME CHANGER: CONSENSUS SCORE & SPREAD Instead of guessing, Klarwetter calculates mathematical model agreement: ✓ High Agreement (> 80%): All models align. The forecast is rock-solid — plan your weekend with confidence. ⚠️ High Spread: The models diverge. Klarwetter honestly displays the spread so you know you need a plan B. MEASURED ACCURACY No empty marketing claims: We verify our forecasts daily against the official German station network. Mean error is around 1.0 degree — publicly visible including worst-case outliers. MORE POWERFUL TOOLS • High-resolution rain radar with 1-km precision + minute-by-minute nowcasting ("Rain in ~20 min") • AI Radar Briefing: Explains cloud tracks and storm movement in clear words — also with audio readout • Official severe weather warnings in their unedited original wording • Pollen count, air quality, UV index & sunshine hours • Agro-weather: Optimal operational windows for hay harvest, fertilising, crop protection, and garden • Aurora Borealis index & astronomical data • Elegant home-screen widgets LEGAL NOTICE (§ 5 DDG) Karuki Group GmbH i.G. Josef-Ponten-Straße 30, 40595 Düsseldorf, Germany Managing Directors: Christian Kania, Daniel Rübenkönig Contact: [email protected] Web: https://klarwetter.com/en Privacy: https://klarwetter.com/en/datenschutz