Best hiking app – MotionX GPS Review

I have used this app on several generations of iphone and it works well. Can import or export a gps track, store topo maps offline for use without service, and is inexpensive. Gps apps still run down the battery quickly, but use airport mode if no service. I always seem to get lower mileage than dedicated gps receivers. gps not too accurate in steep canyons, but otherwise works great. i have downloaded maps in europe and us. Have tried many other apps but always end up using MOTION-X. Use the HD version on ipad
Review by xxmaddog on MotionX GPS.