Your complete sailing companion — reference guides, logbooks, AI tools, safety procedures, a marketplace, and a crew & companion network, all built for sailors by sailors.
SAIL-OFF brings together everything a sailor needs into a single, thoughtfully designed app — from expert rigging guides and wind analysis to maintenance logs, safety procedures, and a community marketplace. Whether you're day-sailing or crossing oceans, SAIL-OFF helps you prepare, log, and stay safe on the water.
Expert rigging guides, wind & sail analysis, and sail speed tables for catamarans, monohulls, and trimarans — all in one place.
Pre-sailing checklists, sailing and vessel logbooks, sea trial logs, MOB checklists, provisions tracking, and maintenance schedules.
Rigging & maintenance assistant, route advisor, provision advisor, engine diagnostics, maintenance timeline generator, and solar power calculator.
Buy and sell sailboats, boat parts, and berths/moorings — with proximity-based sorting so the nearest listings surface first.
Connect with crew, find sailing companions, and meet single sailors — with identity-verified profiles and in-app messaging & calls.
Man overboard, de-masting, storm anchoring, drogue use, celestial navigation, marine knots, VHF procedures, flag compliance, and more.
All information in SAIL-OFF is general guidance for reference only and is not a substitute for professional training, vessel-specific manuals, or sound seamanship. The operator is solely responsible for assessing conditions, maintaining their vessel, and ensuring the safety of all crew and passengers.