Run your crew and your boat from one app — not a stack of spreadsheets
Rest-hour logs, cert compliance, cash ledgers, payroll and rosters currently live in half a dozen spreadsheets and paper forms. SeaLog puts every one of them in a single offline-first app — and exports clean, audit-ready paperwork whenever an inspector, office or accountant needs it.
Built for the realities of life at sea
Not a port-side SaaS tool adapted for ships — designed offline-first, from a working mariner's own logbook.
100% Offline-First
Every log, cert and record lives on the device first. No signal, no problem — data syncs to the vessel's admin the moment a connection is available.
MLC 2006 / STCW Compliance Engine
Rest-hour rules run as true rolling 24-hour and 7-day windows, not calendar-day guesses — with emergency override and compensatory rest built in.
One App Instead of a Spreadsheet Stack
Cash ledger, compliance matrix, roster planning, payroll and expense review — the ship's office runs from one Master Terminal, not five different spreadsheets that never quite agree with each other.
Export-Ready for Paperwork & Audits
Every log is built to leave the app: official IMO/ILO rest-hour formats, safe reconciliations, compliance status and payroll summaries — export in a tap, ready to sign, file or hand to an inspector.
Every corner of the paperwork drawer, digitised
Click through what crew and vessel managers actually use, day to day.
Work / Rest Hours
A true 30-minute record — matching the real paper/Excel logs vessels already sign — with the compliance maths done for you.
- Long-press to mark Work, Meal or Drill; blank is automatically rest
- True rolling 24-hour and 7-day windows, not calendar-day shortcuts
- Admin-approved emergency override with linked compensatory rest
- Official IMO/ILO Model Format export, ready to sign and file
Compliance Matrix
The vessel manager defines what every department must have on file — SeaLog checks it against synced crew documents automatically.
- Required certs configured per department (Deck / Engine / Catering…)
- Matched by category and fuzzy name against uploaded documents
- Fleet-wide red / amber / green view for the Master Terminal
| Crew | ENG1 Medical | STCW Basic Safety | CoC |
|---|---|---|---|
| J. Aldridge | On file | On file | Expiring |
| M. Okoye | On file | Missing | On file |
Vessel Safe Ledger
Every note in and out of the safe, logged against a starting float per currency — so reconciling the till stops being guesswork.
- Bonded store sales, cash advances, shore transport, or a custom entry
- Running balance per currency, always matching what's physically in the safe
- Cash advances can optionally flow through to that crew member's payroll
Crew Card & Roster
A crew member's identity travels as a QR code, not a spreadsheet row — scan once to link a device to the vessel.
- Admin-issued QR crew cards for managed vessels
- Solo self-created card for crew not tied to a managed vessel
- Live onboard/off status and days-until-next-change, always visible
Expenses & Payroll
Crew submit an expense with a photo of the receipt; the Master Terminal reviews, adjusts and approves — with a running payroll summary underneath.
- Submit-and-track expense workflow with pending/approved/rejected status
- Admin can adjust amount, currency or category before approving
- Payroll expense summaries per crew member, per month
User guides
Short, practical guides covering every corner of SeaLog.
Getting Started
Install SeaLog, create your crew card, and find your way around the app.
Read guide →Setting Up a Vessel (Admin)
Unlock the Master Terminal, issue crew QR cards, and configure the compliance matrix.
Read guide →Logging Work / Rest Hours
Mark a day, apply a saved pattern, and understand what the compliance colours mean.
Read guide →Submitting an Expense
Attach a receipt, track its status, and see it reflected in your payroll summary.
Read guide →Running the Compliance Matrix
Define required certs per department and read the fleet-wide status view.
Read guide →Exam Tracker & Syllabus Index
Track an MCA exam date and find the right official syllabus and dates.
Read guide →Ready to ditch the spreadsheets?
SeaLog is currently in closed testing with real crews. Get in touch to be part of the early access group and bring your rest hours, compliance, ledger and payroll into one app.