
nautical navigation
Know the Ropes

Features
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Smart Sail uses real-time wind and weather data along with your boat’s performance profile to calculate optimal routing — including suggested tacking points, departure windows, and dynamic course corrections. The more you sail, the smarter your polar becomes.
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Visualize forecasted and live marine conditions — wind, waves, current, and more — with beautiful overlays that can be downloaded for offline use.
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Download charts, routes, and weather data in advance so you're always ready, even when off the grid.
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See where others are sailing, share route data, post reviews, and collaborate with fellow boaters — all within the app.
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Discover anchorages, marinas, and hidden gems through user-uploaded photos, ratings, and on-the-water experiences.
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Report unexpected weather, rough seas, hazards, or local updates that other sailors need to know — like Waze, but for the water.
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Track nearby vessels using AIS data to improve situational awareness and safety during navigation.