Navigate by the sky
Shoot Polaris, catch the sun at noon, or reduce a round of star sights. The sky matches the boat’s true position and current UTC.
A REAL-TIME OCEAN PASSAGE
One boat.
One ocean.
No shortcuts.
Wake on an unknown island. Take command of a 36-foot sloop. Find your position by the stars, read the weather, and cross the real Earth at one second per second.
VESSEL
SAIL
CLOCK1:1 REAL TIME
WORLDREAL EARTH
CONNECTIONOFFLINE
TRACKINGNONE
THE VOYAGE
The sea will not tell you where you are.
Your chart begins blank. Your weather comes from a moving pressure field. Your landfall is the real coastline. Everything you need is aboard—if you can learn to read it.
Read the weather
Pressure systems make the wind. Sea state builds over hours. Currents set the boat sideways while your dead reckoning drifts.
Put the phone down
A thousand-mile passage takes real days. Sail catches up when you return and local notifications call you only when the boat needs you.
LEARN THE ROPES
A sailing game that teaches the why.
A quiet coach notices what an experienced hand would notice. A live polar diagram shows why a reach is fast and why the bow cannot point straight into the wind. The onboard handbook starts with the basics and carries you through reefing, weather, and celestial navigation.
ONBOARD SYSTEMSREADY
A
SAILING COACHCONTEXTUAL GUIDANCE
B
LIVE POLARBOAT SPEED + WIND ANGLE
C
HANDBOOK8 CHAPTERS · 19 DIAGRAMS
PRIVATE BY DESIGN
The ocean is vast.
Your data stays aboard.
Sail has no accounts, ads, analytics, tracking, or network connection. Voyage state and preferences remain on your device. Notifications are scheduled locally—there is no server watching your passage.
READ THE PRIVACY POLICY →CAST OFF
Your position is unknown.
The rest is up to you.
Sail is designed for iPhone and iPad running iOS 18 or later.
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