i-Boating : Marine NavigationBy Bist LLC ( Free )
This App offers access to Marine Charts for USA,Canada,UK/Ireland,Germany,Netherlands/Holland & Europe Rivers (Danube,Drava,Rhein etc). Coverage includes NOAA marine vector charts,freshwater lake maps,USACE inland river maps (HD/1ft/3ft bathymetry included where available),charts derived from UKHO & CHS data. ...