The one Barometer you would need on your Watch and your phone!
This app provides the following information using the built-in sensors:
• Atmospheric pressure
• Sea level pressure
• Altitude
• Latitude and longitude
• Boiling point of water based on the current pressure
The Watch app also features beautifully designed complications.
This application does not connect to the Internet. The barometer feature supports iPhone models newer than the iPhone 6s, iPad models newer than the iPad Air 2, and Apple Watch Series 3 and beyond.