I have a waterproof phone pouch and an iPhone, and I want to get started tracking my sessions. What are the good app options? I want speed, VMG, and a track. How is VMG calculated without an anemometer? I can see placing a "waypoint" well upwind of where I would be riding. It would be sick if it could call out the data audibly. Which ones are easy to use? Which ones can add the data to a video?
Thank You!!!