myAltitude - free altimeter for climbing & hiking!

Turn your iPhone or iPad into an Altimeter with myAltitude, the free altimeter app. myAltitude includes an Apple Watch app too, so you can use your iPhones GPS to find your current altitude right from your wrist.myAltitude uses the GPS within your iPhone to display your current altitude (elevation above sea level) in both meters and feet. However Please Note that Continued use of GPS running in the background can dramatically decrease battery life