Check out this new app. You put in your starting point and your ending point and it plots the route for you, taking into account wind and currents. It's in beta testing and they are looking for input. There are some known bugs. Mobile apps for android and iOS are already in development.

https://app.savvy-navvy.com/chart/@40.2982006,-15.2897657,4.91z
edited by DariaBlackwell on 1/9/2018

Vice Commodore, OCC 

Hi Daria,
I like your description of the use of this routing software as a way to collect data on the proposed route and to mix it in with other data inputs. That seems wise. Add that to training in traditional skills and experience on the water and you have the makings for enabling this product to be a useful aid in everyday life on board.
And I particularly like your bringing to mind the word complacency. It captures perfectly a condition that every skipper should watch out for and guard against. Much of what we do is routine and un-dramatic and it is easy to get complacent and forget how easy it is for a routine outing to go pear shaped. And when things go pear shaped on a boat, the ante is higher: running out of fuel in a car, you pull to the side of the road: on a boat, not so safe nor so easy; for crew, for the boat, or for any sent out to help.
My best, Dick Stevenson, s/v Alchemy