Tidal calculations are a fundamental but rather unexciting part of navigation so anything which makes life easier is worth a try. We found AutoTide to be a competent performer with no obvious shortcomings. The basic package with one database costs 59 and additional databases are 10. If you've aspirations for a round the world trip the full portfolio of data is 99. Carriage is 3.
All prices quoted are exc.
This package provides an instant answer for budding Yachtmasters who haven't got a clue about tide tables. It takes away the complicated calculations that go into finding the tidal height at standard and secondary ports around the British Coast and even gives under keel clearance depths to make passage planning a piece of cake. Its easy to use, and is supplied on a single floppy disk suitable for PCs. Of course, if you are a fisherman that could be exactly what you want, except you would no doubt arrive only to find the tide is out. Or perhaps you own a boat, I'm thinking of the type you put on a trailer, and you launch it at a favourite little cove within two hours either side of high tide.