# Mariner's DeckWatch — Ship Officer's Planner & Logs > Ship Officer's Planner & Logs (iPhone/iPad app by Burak Yesilirmak.) - Source: https://appshunter.io/ios/app/mariners-deckwatch/id6818590383 (this page in markdown: same URL + `.md`) - Developer: [Burak Yesilirmak](https://appshunter.io/developer/6817890583) - Category: Navigation, Productivity - Price: Free - Age rating: 4+ - Requires: iOS 15.0 · 66 MB - Languages: American English - Released: 2026-10-27 - Data updated: 2026-10-31 ## What is Mariner's DeckWatch? 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. ## Is Mariner's DeckWatch safe? Not enough ratings yet to assess Mariner's DeckWatch. ## Is Mariner's DeckWatch legit? Mariner's DeckWatch appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Mariner's DeckWatch is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 3 releases) ### 1.2.1 — 2026-10-30 • 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 ### 1.2.0 — 2026-10-28 • Noon reports: the book, Noon Prep, fuel and fresh water, your own report templates sent as messages, DCS and MRV • PSC inspections, audits and vetting on the Inspect tab, and your ship's own inspections with history • Import certificates, jobs, drills and past inspections from your own Excel, by matching the columns • Crew roles: Owner, Master, Chief Officer, Officer and Viewer, and the owner decides who can change what • Record books corrected, not deleted: every correction kept with who and when • One calendar for jobs, certificates, drills, defects and stock expiries • Running hours on a job (radar magnetrons) and any interval, such as every 6 months • Drill timer: BA wearers with their air counted down • Via points, anchorages and pilot stations in Suggest a route and Distances • Navigational warnings: kinds, New and Noted shared with your crew, export as PDF, KML or a Furuno user map • Takeover checklists for the 3rd, 2nd and Chief Officer • Excel export for the UKC plan and the Dewpoint logs; routes as KML, GPX or GeoJSON • Many fixes ### 1.1.2 — 2026-10-28 No release notes. ## More apps by Burak Yesilirmak - [Compass Observation App](https://appshunter.io/ios/app/compass-observation-app/id6817890581) - [Mariner's Draft Survey](https://appshunter.io/ios/app/mariners-draft-survey/id6818049235) All apps by Burak Yesilirmak: https://appshunter.io/developer/6817890583 ## Related topics [ehs chartering](https://appshunter.io/ios/topics/ehs-chartering) · [iship seafarer](https://appshunter.io/ios/topics/iship-seafarer) · [sea app](https://appshunter.io/ios/topics/sea-app) · [vulk](https://appshunter.io/ios/topics/vulk) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*