The cycling application will guide you to the start of the ascent and will then provide you with real-time data on the length of the climb, distance to the top, your current time and the profile of the climb.
Back home you can review your achievements online, compare your best times to those of your friends, or even go head-to-head with some of the best racers out there. App d'Huez is great for those cyclists who love to climb and won't shy away from a challenge.