海拔测量仪 is a free iPhone app developed by 立乾 董. It falls under the category of Travel & Navigation and is particularly useful for outdoor activities such as hiking. With this app, users can easily check their altitude or elevation and even set various beautiful backgrounds to enhance their experience.

The app comes with a built-in altimeter, which allows users to measure altitude accurately. It also provides the option to convert altitude into atmospheric pressure, making it a versatile tool for outdoor enthusiasts.

海拔测量仪 boasts a simple and clean interface, displaying essential information such as altitude, latitude, and longitude. This makes it easy for users to quickly access the data they need while on the go. Whether you're an avid hiker or simply curious about your surroundings, this app is a must-have for anyone who wants to stay informed about their altitude.