Seaworthy – Boat Maintenance

Service plan for your boat

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Know what your boat needs and when. Seaworthy builds a maintenance plan for your sail or motor boat and shows what's due — private, offline, no account. Seaworthy keeps track of everything your boat needs — engine, drive, hull, rig, water, gas, electrics and safety gear — so you always know what is due, what is overdue and what you did last time. A PLAN FOR YOUR BOAT IN TWO MINUTES Tell Seaworthy whether you sail or motor, which engines and drive you have and what's on board. It builds a maintenance plan with more than 100 typical jobs, from oil changes and impellers to seacocks, standing rigging, gas hoses and flares — only the ones that apply to your boat. MANUFACTURER INTERVALS Pick your engine or saildrive model and Seaworthy uses the intervals its manufacturer publishes, including popular Volvo Penta, Yanmar, Vetus, Beta Marine and Nanni engines, Mercury, Yamaha, Suzuki and Honda outboards, and Volvo Penta and Yanmar saildrives. Every task shows what its interval is based on, and you can always set your own. HOURS, MONTHS OR SEASON — WHICHEVER COMES FIRST Enter your engine hours now and then. Seaworthy learns how much you use the boat and estimates when hours-based service will fall due, side by side with yearly and seasonal jobs. YOUR HOME WATERS Choose where your boat is based to include local rules, such as gas installation checks in Germany or the Boat Safety Scheme in the UK. TODAY AT A GLANCE See what is overdue, due soon and coming up across all your boats. Swipe to mark a job done and log the date, engine hours, cost and notes. A COMPLETE HISTORY Every job you log builds your boat's maintenance history — searchable, by boat and by month, with what you spent this year. Useful for yourself, your yard and when you sell your boat. MULTIPLE BOATS Sailboats and motorboats, inboards and outboards, the tender too. Each boat gets its own plan, colour and photo. PRIVATE BY DESIGN No account, no tracking, no ads. Your data stays on your iPhone and the app works fully offline — perfect at the marina or at sea. Seaworthy's intervals are guidance compiled from manufacturer documentation and industry practice. Always follow your manufacturer's manual and local regulations.

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The developer, Geert Verbist, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    Geert Verbist
    Size
    1.8 MB
    Category
    Productivity
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 3 more
    • English, Dutch, French, German
    Age Rating
    4+
    Copyright
    © 2026 Geert Verbist
  • Developer Website
  • Privacy Policy