There are lots of websites that can give you wind and swell reports but generally I want one last report a few hours before I sail. The App seems to have been improved since the comments back in 2013 & 2014 because I didnt experience any of the issues stated.
But to get quick and accurate information is extremely important so while Free is always nice I felt this was an investment for peace of mind. However, I agree, dont offer something for Free that useless and simply be open with the cost upfront. Otherwise Id give it a 5 star.
BK from Downtown about Buoyweather - Marine Forecasts