Barometer for Watch is a free iPhone app developed by Bangyan Chu that serves as your essential weather companion. With its built-in sensors, this app provides valuable information such as atmospheric pressure, sea level pressure, altitude, latitude and longitude, and even the boiling point of water based on the current pressure.

One of the standout features of Barometer for Watch is its compatibility with Apple Watch. The Watch app comes with beautifully designed complications, allowing you to easily access the barometer information right from your wrist. Whether you're planning a hike, monitoring weather changes, or simply curious about your current altitude, this app has got you covered.

It's worth noting that Barometer for Watch does not require an internet connection, making it a reliable tool even in areas with limited connectivity. The app is compatible with iPhone models newer than the iPhone 6s, iPad models newer than the iPad Air 2, and Apple Watch Series 3 and beyond.

Stay informed and be prepared with Barometer for Watch, your all-in-one weather companion.