WindXplorer vs Stormlo

Flying a hot air balloon starts with a weather decision. WindXplorer brings together in a single app everything a pilot needs to make it — then to fly, and to keep a record of every flight. BEFORE THE FLIGHT — DECIDE WITH CONFIDENCE View and compare the best weather models (AROME, ICON-D2, UKMO, MET Nordic, GFS) for your launch site, hour by hour and altitude by altitude. The FlyScore distills wind, rain, CAPE, and cloud cover into a 0–100% score: your flying window at a glance, up to 14 days ahead. UNDERSTAND THE AEROLOGY The vertical sounding table and wind rose reveal speed, direction, temperature, and humidity at every altitude. Spot wind shear, pick your steering layers, anticipate your drift. SIMULATE BEFORE YOU INFLATE Plot your predicted trajectory based on your chosen altitude and duration, right on the aeronautical chart with CTR and TMA zones and restricted areas. You know where you're headed before you even lift off. DURING THE FLIGHT — STAY IN CONTROL OF YOUR TRACK Live position on an aeronautical chart, airspace you're crossing, heading, speed, variometer, distance to your planned point. Your chase crew follows you in real time. AFTER THE FLIGHT — KEEP THE RECORD The flight logbook records your flights, photos, and statistics (duration, distance, max altitude). Replay your trajectories, share your best flights, and browse the history of your club or your fleet of pilots. FLY AS A TEAM Save and share your launch sites and favorite places with your crew and your club. Built by and for balloon pilots, WindXplorer is with you from the first weather briefing to the last line of the logbook.

Stormlo gives you the weather you actually need — clean current conditions, a scrubbable rain radar, deep meteograms, and serious meteorological depth one tap away. Today • Current temperature, feels-like, and conditions • Hourly strip for the next 24 hours • 7-day outlook with rain probability, max/min, and UV • Sunrise / sunset / pressure / humidity / wind Radar • High-resolution rain radar with smooth scrubbable playback • Past 2 hours plus short-term forecast frames • Global coverage via RainViewer Forecast • Hourly meteogram: temperature, precipitation probability, wind • Day-by-day breakdown with precipitation totals, UV, wind • Multi-model comparison: stack ECMWF, GFS, ICON, UKMO, MeteoFrance and JMA on a single chart — see which models agree Alerts • Live severe-weather alerts via the US National Weather Service • Clear "all clear" state when nothing's active for your area • Pull to refresh, tap for full alert detail Settings • Choose your units: Celsius/Fahrenheit, km/h/mph/m/s/knots, hPa/inHg/mbar • Open the supporting site, privacy policy, terms, and support Sources • Forecast: Open-Meteo (multi-model, free, global) • Radar: RainViewer (global composite) • Alerts: US NWS Stormlo Pro The core app is free. Stormlo Pro is an optional auto-renewable subscription: • Stormlo Pro (Monthly) — billed every 1 month • Stormlo Pro (Yearly) — billed every 1 year Prices are shown in the app before you purchase. Payment is charged to your Apple Account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours prior to the end of the period. You can manage or cancel your subscription any time in your Apple Account settings. Terms of Use (EULA): https://app.maddisys.co.uk/terms Privacy Policy: https://app.maddisys.co.uk/privacy No ads. No tracking SDKs.