Tap the '+' button to show the Ports Map, Ports List and the Settings screen. Tap on a map pin, or a location in the list to add it to your ports.
Thats cool, in the settings there is a switch that allows you to toggle between 24 and 12 hour times.
Either tap the current date bar, just underneath the current locations' name to reveal a calendar. Or tap the 'Table' button to view the Tide Table and tap on any day in the list.
On a future tide, press and hold on the prediction row to present the reminder menu.
Press and hold on the very same row that you added a reminder on to confirm you would like to remove it. You can remove all tide reminders in the settings screen.
You can send feedback in the app from the settings screen. Or if you prefer, send me an email on firstname.lastname@example.org