Mariner's DeckWatch
Ship Officer's Planner & Logs
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
The work planner and record keeper for ship's deck officers: passage plan, work plan, PSC, noon reports, rest hours and record books. Works offline at sea.
DeckWatch is the work planner and record keeper for ship's deck officers, built by a serving Chief Officer for life on board: port calls, PSC, cargo, watchkeeping and the passage in between. Everything works offline at sea.
PASSAGE AND NAVIGATION
• Passage Plan: waypoints in stages, speeds, ETAs and clock changes; RTZ in and out for the ECDIS; KML, GPX and GeoJSON out
• Suggested routes clear of land and shallows, down the traffic separation lanes, out of river ports by the water, with via points: pilot stations, anchorages, positions
• Chart: ECAs and other fuel rules, MARPOL special areas, scrubber discharge bans, load line zones, reporting systems, NAVTEX stations, pilot stations and anchorages, navigational warnings in force (exported for the ECDIS), weather and currents along the route
• Dynamic UKC per waypoint, with CATZOC and squat
• Distances between ports and positions, with the canals and without
• ETA calculator, radar plot (CPA/TCPA and a trial manoeuvre), wheel-over, true wind
• Anchoring: how much cable, the swing circle and the anchor watch
NOON REPORTS
• The noon book: positions, distances, speeds, fuel and fresh water by grade and consumer, worked out from the last noon, the passage and the voyage
• Noon Prep for the watch, and your own report templates sent as messages
• DCS and MRV figures for the year
INSPECTIONS AND AUDITS
• PSC by regime, audits and vetting: deficiencies and findings, actions and rectify-by dates, each made a defect in a tap
• Audits due by the ISM Code and the certificates' windows
• PSC and RightShip checklists, and your ship's own inspections with remarks, photos and history
WORK PLAN AND RECORDS
• Work plan: routine jobs with steps, any interval, running hours (radar magnetrons) and reminders
• One calendar for jobs, certificates, surveys, drills, defects and stock expiries
• Import your certificates, jobs, drills and past inspections from your own Excel, by matching the columns
• Garbage and Ballast Water Record Books, in UTC with positions; PDF and Excel as the books' pages; corrections kept, never deleted
• Rest hours checked against STCW and MLC as you log them
• Drills: the programme, a drill timer with every step stamped, and BA wearers' air counted down
• Statement of Facts with daily and final reports
• Certificates with expiry warnings; defects that become jobs
• Handover: standing and night orders, acknowledged
CARGO AND DECK
• Dewpoint and ventilation, cargo hold gas readings, paint log
• Enclosed space operations: people, readings, checks due and late
• IMSBC cargo reference, stowage and securing checklists, mooring line register
• Company forms filled from your records
POCKET GUIDES
COLREG lights and sounds, IALA buoyage, GMDSS (with DSC test stations), LSA and FFE, emergencies, enclosed spaces, MARPOL, ship security, weather, seamanship and more, each with drawings and a quiz. Takeover checklists for the 3rd, 2nd and Chief Officer joining a ship.
WORKS OFFLINE, SHARES WHEN YOU CHOOSE
No account is needed. Sign in (email, Google or Apple) to back up your records and share a vessel with your crew: Owner, Master, Chief Officer, Officer or Viewer, with the owner deciding who can change what, and who wrote what kept on every record. Delete your account and your cloud data at any time in the app.
No ads. Your data is never sold.
DeckWatch is a planning and record-keeping aid. It does not replace official charts and publications, the ship's statutory records or your company's procedures. Always check against approved sources.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Names beside the ranks: "2nd Officer · John Smith"
• Import your crew list from Excel, and pick from it in signature and "by" fields
• Enclosed spaces: the gas reading checked space by space
• SoF: newest day at the bottom, if you prefer
• Warnings refreshed while the app stays open; inland waters off North America left out
• Excel files from other programs now open
• Fixes to noon reports, the radar plot, mooring and hold prep
The developer, Burak Yesilirmak, 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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Burak Yesilirmak
- Size
- 69.2 MB
- Category
- Navigation
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Mariner's Hand App
