GeoStorm vs Pascal Barometer

GeoStorm is the all-in-one weather and visualization tool. Whether you’re a professional mariner, an avid hiker, or an aurora chaser, GeoStorm integrates high-quality data from with real-time tracking to keep you informed. Explore Our Core Modules: Sky & Space: Never miss a moment with precise Sun and Moon positioning. Use our Satellite Imagery (Beta) to see the world from above and stay updated with live Northern Lights (Aurora) observations reported over the last 24 hours. Sea & Navigation: Set sail with confidence using official Nautical Charts. Monitor maritime activity with live Ship tracking (Beta) and stay ahead of the game with the latest Fishing & Catch reports. Land & Wilderness: Master the terrain with detailed Topographic Maps. Discover new heights with our Mountain Peak (Beta) database and explore local biodiversity through integrated Species Observations.

Track atmospheric pressure and predict weather changes using your device's built-in barometer. Pascal transforms your iPhone and Apple Watch into precision barometric instruments. Monitor pressure trends, receive storm warnings, and get weather predictions — all computed on-device with no internet required. FEATURES • Real-time pressure monitoring with 12-hour trend charts • On-device weather forecasting using the Zambretti algorithm • Storm alerts via push notifications • Live Activities showing pressure on Lock Screen and Dynamic Island • Flight mode with cabin altitude tracking • iOS widgets (small, medium, large) and Apple Watch complications • Hybrid calibration system for accurate readings PRIVACY FIRST All data stays on your device. No accounts, no cloud sync, no tracking. Location is used only for GPS altitude calibration and is never stored. TECHNICAL Pascal uses Apple's Core Motion framework to access the barometric sensor, delivering sub-Pascal resolution. The hybrid calibration system combines GPS altitude with relative altitude tracking to filter out elevation changes and surface true weather signals.