Barometer for Watch vs BaroCast

Pressure and altitude. Beautifully clear. Barometer turns the built-in sensors on your iPhone, iPad and Apple Watch into a clear view of the conditions around you. Check a reading at a glance, follow pressure changes, or explore your altitude as you climb. PRESSURE, IN PERSPECTIVE • Atmospheric and estimated sea-level pressure • Pressure history, trends and changes over time • A pressure-based weather outlook • Optional pressure-change notifications A CLEARER VIEW OF ALTITUDE • Altitude readings and elevation charts • Calibration using a known altitude or available sensor references • Ascent, descent and elevation range • Latitude and longitude • Estimated boiling point of water at the current pressure MADE FOR YOUR DEVICES • A dedicated Apple Watch app • Watch complications and iPhone widgets • Siri and Shortcuts support • Control Center shortcuts • Your choice of measurement units • CSV export for saved measurements Core pressure and altitude measurements work offline using your device’s sensors. Location access enables additional information, including estimated sea-level pressure. Requires iOS 26, iPadOS 26 or watchOS 26. Available readings depend on your device’s sensors and permissions. Pressure-based weather information is an estimate, not an official forecast.

BaroCast 是一款专为 Apple Watch 设计的气压趋势工具。 它会记录手表气压计采集的气压数据，以清晰图表展示最近 12 小时的变化。你可以查看当前气压和最近 3 小时气压升降幅度，并设置下降阈值达到后触发暴风雨预警。 支持后台刷新，以及当前气压和 3 小时变化幅度表盘小组件。后台采集时间由 watchOS 调度，建议开启“后台 App 刷新”并将小组件添加到表盘。 气压会受到海拔、电梯、上下楼和移动路线影响。趋势与预警仅供参考，不能替代官方天气预报或灾害预警。