Winter sport lovers out there are going to be quite pleased with Powderful, by Less Code.
Powderful is skiers’ and snowboarders’ best companion when they’re out on the slopes. It keeps the sportsmen up to date with any useful information about their current run using GPS. With embedded maps, speed detection and voice alerts you never get too fast and rush against trees [Ed: none of which has been tested by the author]. Presented in a bright, white and effective UI that motivates to go out and track some ski runs. $0.99 on the App Store.
This is an introductory special price, thanks to @chrisherbert1 for indicating.