Grand Massif Official is a free Android app developed by Skiplan Lumiplan Montagne. It provides information about your favorite skiing resort, including an interactive trail map, weather and snow forecast, webcams, and My Ski feature to measure and track your performance.

The app is designed to help you make the most of your skiing trip by providing all the necessary information in one place. You can buy a ski pass, access an interactive ski map, view daily weather forecasts, and check out webcams to see current snow conditions.

My Ski feature enables you to measure your performance, face challenges, and compare your statistics with your friends. However, it is important to note that the continued use of GPS running in the background can decrease battery levels.

Overall, Grand Massif Official is a must-have app for any skiing enthusiast looking to have an unforgettable skiing experience.