Data Source?

This is absolutely a great app. Im glad to have found it, so far info seems to be accurate.

But I would really like to know where the elevation data and aerial images came from; itd be helpful if noted in the app.

As a pilot, I am using the profile data for flight planning. To me accuracy/reliability of the data is very important.

SoloAppReviewer about Elevation Chart - Draw Profile View by Touchs