So we got an Ipad. Part of my justification to the boss was as a tertiary backup chartplotter. A fellow I had on board last year had the Navoinics app that worked well. When I go on the App Store I can't find it. The Navionics web site lists the boating app but when I click the icon nothing happens. Maybe I am missing something or don't know what I am doing. Any advice or information out there? Thanks.