Pascal Barometer vs Barometric Pressure

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.

You're not imagining it — the weather really can be felt in your body. If barometric pressure swings leave you with a headache, a migraine, sinus pressure, or aching joints, Barometer helps you see it coming. It tracks the air pressure at your exact location hour by hour, shows you when it's dropping, and helps you connect those changes to how you actually feel. WHAT YOU GET • Live barometric pressure and trend for your precise location • A clear 0–100 pressure-change outlook, refreshed every hour • Hourly and 7-day pressure forecast — see where it's heading and plan ahead • "This Week" at a glance: each day fills like a cloud, calm blue to stormy red, so rough days stand out instantly • Gentle morning alerts when pressure is set to drop • One-tap logging for headaches, migraine, fatigue, sinus, joint and arthritis pain • A personal correlation report that reveals how your days line up with pressure changes • Optional Apple Health tuning — heart-rate variability and sleep refine your outlook • Comfort extras: feels-like temperature, humidity and dew point • Exportable PDF report to keep or share BAROMETER PRO Go further with a subscription: • Weekly — $4.99 • Yearly — $29.99 (best value) Pro unlocks the full 7-day outlook, custom alerts, your complete correlation history, Apple Health personalization and PDF export. HONEST BY DESIGN No scary countdowns, no fake certainty. Barometer shows you the weather your body feels and lets your own logged history tell the story — calm, clear, and on your terms. PRIVATE BY DESIGN Your logs stay on your device. Location is used only to fetch local weather. IMPORTANT Barometer is an informational wellness app. It is not a medical device and does not diagnose, treat, or predict any medical condition. Always consult a qualified healthcare professional about your health. Payment will be charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your Apple Account settings after purchase. Privacy Policy: https://sites.google.com/view/privacy-policy-zelat/inicio Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/