i like to hike and use Runkeeper to keep a map of where I've been. If I want to use the Exercise app to track the workout, and also want a map, do I have to use 2 different apps? Or is there a GPS tracking app that will add my workout to the Exercise App used on the watch. Does that make sense? Basically I'd like to use Runkeeper, or something similar, but have it count towards me Exerises and Accheivements.