The Wasatch Backcountry Skiing Map is available for devices running the Apple iOS and the Google Android operating systems. The apps use your device's GPS to determine your current location and to display the distance and direction to any destination. The apps are designed to run on both phones and tablets.
The Android app was updated in December 2015 and the iOS app was updated in January 2016. Version 2.0.x adds "slope shading," where slopes that are 30-degrees or steeper are shaded light-red. The new versions also add more run names and minor corrections.
The Wasatch Backcountry Skiing apps do not require cell service.