The new BESV SPORT App offers an offline map, navigation, reachable areas, weather conditions and many other new features. It also comes with fitness functions such as heart rate and calorie burn calculators to help mountain bikers review their training progress.
There is also a built-in BT module for the battery pack, which allows this app to remotely monitor battery charging and a self-diagnosis of the bikes status.
Please note: The app works only for TRB1 model currently.