DivePlanner app for iPhone and iPad
Select a planned date and area to dive and see all relevant astronomical daylight details, slack water times, tide heights plus a rolling 31 day period of tide ranges showing neap and spring tides.
Slide the tide ranges left or right to update the planned dive date or to chose the date of the next neap tide.
Slide up and down the daylight details graphic to show the tide direction and flow speed for any time in the day.
The app is valid until 31/12/2022.