ClearShip is your Swiss Army knife for sailing and boating – anchor alarm, emergency assistant, navigation tools and complete boat management in one app.

⚓ ANCHOR ALARM
Sleep soundly at anchor: drop your anchor point, set the swing radius and let ClearShip watch your position – even in the background. You get an early warning when you approach the threshold and a full alarm if your boat leaves the radius.

🆘 EMERGENCY & MAYDAY
The emergency assistant guides you step by step through Mayday and Pan-Pan radio calls – with your current GPS position, boat name and MMSI. Includes the NATO phonetic alphabet so you find the right words when it matters.

🧭 TOOLS FOR ON BOARD
• Compass & GPS – heading, position and speed
• OpenSeaMap – nautical chart with navigation data
• NMEA 2000 reader – live data from your WiFi gateway
• Navigation calculator – course, leeway, current triangle, ETA
• Anchor calculator – rode length and scope
• Sail trim – trim recommendations for main and headsail
• Wind converter – Beaufort, knots, m/s, km/h
• Unit converter – nautical and standard units
• Weather charts – DWD surface weather charts
• Phonetic alphabet – NATO alphabet reference

🛥️ BOAT MANAGEMENT
• Tasks – plan, prioritize and check off maintenance work
• Logbook – voyage entries with position and course
• Checklists – e.g. for departure, maintenance or winter storage
• Equipment – devices, manuals and maintenance schedules
• Inventory – equipment and spare parts with photos
• Expenses – track costs and receipts
• Documents – boat papers and manuals, available offline on board

📡 OFFLINE-FIRST
There is not always reception on the water. ClearShip is built for that: tools work offline, pinned documents are stored locally, and your data syncs as soon as you are back online.

🔄 SYNC (OPTIONAL)
With a free ClearShip account you sync boats, tasks and logbook across all your devices. All tools also work entirely without an account.

🌍 Available in English and German, with light and dark mode.

Note: The anchor alarm uses your location in the background while it is active. ClearShip is an aid on board – it does not replace a proper anchor watch, official nautical charts or good seamanship.