Very nicely written App

Works exactly as advertised. Maps are accurate and charts are accurate. The settings can easily be changed from metric to imperial (through IPhone settings - the comments on some reviews that it cannot be done is simply wrong).
One suggestion: It seems the altitudes are derived from the GPS. I have seen other apps that show altitude based on Map location. It would be useful if one could change the settings to measure altitude based on the Map position.

J Zuend about EasyTrails GPS, v7.0