Apps Like Nautical Calculator Pro for iPhone and iPad
Calculate routes and track positions
Calculate routes and determine points on Rhumb Line, Great Circle, and WGS84. Compute average speed and estimated time of arrival. Plan routes with manual waypoints and create waypoint routes. Support composite sailing calculations.
Nautical Calculator Pro screenshots
Ranked alternatives
Showing 381–400 of 1,000 ranked alternatives.



iStreams English Channel
Colin Porteous
Track tidal streams and measure set rates
Displays real-time tidal stream data for the , referencing the nearest Dover high water time. Shows valid hourly streams charts and time periods. Allows users to measure tide set and interpolated rates.


iStreams Portland
Colin Porteous
Track tides and set times offline
Displays real-time tidal stream data for , referencing the nearest Devonport high water time. Shows valid hourly streams charts with time periods. Automatically updates to the next valid chart period. Measures tide set and interpolated rates.







iStreams North Sea (NW)
Colin Porteous
Track tidal streams and measure set rates
Displays real-time Sea tidal stream data based on the nearest Dover high water time. Shows valid hourly streams and time periods. Auto-updates to the next valid period. Includes tools to measure tide set and interpolated rates.





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