BaroCast vs Barometer on‑Wrist

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。

Feature Highlights Dual‑display Barometer & Altimeter All‑in‑One ‑ Shows real‑time barometric pressure and altitude simultaneously, no need to switch between multiple apps. ‑ Dual pressure readout: raw sensor value from Apple Watch and ISA standard pressure calculated by altitude. Ripple background animation visualizes pressure level intuitively. ‑ Displays weather symbol alerts when rapid short‑term barometric changes suggest possible weather shifts (for reference only). ‑ Merges Watch‑built‑in altitude and GPS altitude. Fine pressure variations dynamically calibrate altitude for higher precision. ‑ Records pressure & altitude changes, visualized with numbers and scales. Long‑tap the change value to reset. ‑ Auto‑calibration triggers when deviation against system altitude becomes large, balancing overall accuracy and sensitivity to subtle variations. ‑ Tap pressure value to toggle units: hPa, inHg, mmHg. Altitude supports meters / feet. Rich Watch Face Complications ‑ Circular complications for pressure and altitude for quick glance. ‑ Stack‑able rectangular complication tracks 24‑hour pressure‑altitude trends with current readings. Keep it on watch face to enable continuous logging.