Wrangler is your personal navigator.
Keeps track of your displacements with high accuracy storing the route you take and the time it took you to reach your destination, this way you will be able to compare routes and choose your favourite one.
Wrangler is perfect for timing your commuting routes and will help you improve it. It will also be helpful keeping track of the distance traveled and the timing while going jogging or walking.
You can turn on/off the map to view your location or save battery respectively.
Browse through Wranglers log to compare all your previous travels and how much have you improved them.
Continued use of GPS running in the background can dramatically decrease battery life.