Great app, great developer
This app has the right mix of functionality, polish, and simplicity. The developer deserves major points for being responsive to feedback, as they very quickly added a feature to allow the selection of preferred tide datum after I suggested that it would be useful. I suspect this may be what some of the negative reviews regarding incorrect data were talking about. I have found that this app matches NOAA data very closely when you use the same tide datum in both places. Well worth the purchase price!
pier0cks