Trial version not helping – Navionics® Boating Review

I downloaded the trial version as suggested by Navionics. Well the trial version seems to hang up or freeze. So if they expect me to buy the paid version this app is not helpful and working for me to buy. I suggest they fix it. So I must say at this point don't spend your hard earned money.
Review by Dennis Grandinetti on Navionics® Boating.