sailor/boater/etc
First, this isnt going to replace your chart plotter or other $500+ device, so if thats your purpose move on; however, for a reasonable cost ($8), this program does provide great tracking and waypoint information against free NOAA charts. I found it to be user friendly, instructions page is concise and well laid out, and it displays information well. Its a strong recommendation from my experience, for sailing and boating
David B - Rochester NY about
iSailGPS : NOAA USA RNC Charts