Duty shift

Your maritime watch assistant

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Duty shift is your essential tool for every sea voyage. Sailing is a pleasure, but crew management is a duty. Duty shift takes this burden off the captain's shoulders. Forget about scraps of paper and arguments about who takes the helm next. MAIN FEATURES: SMART SCHEDULE Choose the Fixed System (Swedish) or Fair Rotation. The algorithm ensures every crew member spends equal time on deck and in the galley. AUTOMATIC LOGBOOK The app saves GPS positions at every watch change. After the voyage, you have a ready route history on the map. NOTIFICATIONS & "THAT'S ME" The system automatically sends notifications before a watch change. Mark yourself with the "That's Me" feature to filter notifications just for you and switch the main dashboard timer to count down to your specific watch or rest time. CREW LIST WITH AVATARS Add crew members and personalize their profiles with fun Emoji avatars. FREE VERSION (Fully functional) Use the app for free with no time limits: • Create unlimited voyages. • Manage the full crew list. • Generate schedules and receive notifications. • Save voyage history locally on your phone. PRO VERSION (For professionals) A one-time purchase unlocks professional features: • PDF EXPORT: Generate and print professional Crew Lists and Agendas. • SHARING: Export voyage files and import voyages from other users. • SPECIAL MODES: Bosun Watch and Skipper Mode. NEW — WEATHER & WIDGET: Check the weather forecast (Open-Meteo) with storm warnings and a wind compass right inside the app. Use the Home Screen widget to see who's on watch without opening Wachty. NEW — ANCHOR WATCH (PRO): Drop anchor and let the app watch the drift. A drift radar alerts you when the boat leaves the set radius — even with your phone locked.

  • 5.0
    out of 5
    1 Ratings

• New in PRO — Anchor Watch: drop anchor and let the app watch the drift. A drift radar alerts you when the boat leaves the set radius • Weather on board: Open-Meteo forecasts, storm warnings and a wind compass. • Home Screen widget — see who's on watch without opening the app. • Voyage archive in iCloud Drive — a backup of your voyages always at hand. • Improved rendering of exported PDF files. • A refreshed, more consistent interface with visual polish throughout the app. • Refined watch algorithm — in edge-case crew configurations the schedule could contain unmanned gaps; the deck is now always covered. • General stability fixes and minor improvements.

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

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

Seller
  • Mateusz Moc
Size
  • 9.9 MB
Category
  • Productivity
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Location
  • This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
English and 16 more
  • English, Croatian, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2025 Mateusz Moc