Every certificate, sea-service record and personal detail in one secure place on your phone — no cloud, no account, no sign-up. Smart expiry alerts, a one-tap PDF CV, and a vCard QR code that crewing agencies can scan in seconds.
SDM was built around the real frustrations of life at sea — not around a feature list.
One lapsed STCW or medical certificate and you can't join the vessel — a missed contract and weeks of lost income.
Re-typing vessels, ranks, dates and certificate numbers into a fresh Word document each time a manning agent asks.
Scans buried in chats, photos lost in the gallery, originals in a folder back home — never there when an inspector asks.
A complete personal organiser — documents, sea time, CV, contacts and scans — plus optional DP Log and UK Midnight Position Check modules.
Store certificates, licences, passport and visas with issue/expiry dates. Attach a PDF scan to each, search and filter instantly.
A voyage log for every contract. Total sea time and STCW revalidation service are calculated automatically from your sign-on / sign-off dates.
Generate a professional maritime résumé from your data and share it anywhere. Pick from Classic, Executive, Minimal or Offshore designs.
A vCard QR code anyone can scan with their camera to instantly save your contact, email, Telegram, WhatsApp and Teams — your home address stays private.
Capture documents with the camera into compact single-page PDFs, review them in a built-in viewer, then bundle and share a selection as one ZIP.
Photo, full name, nationality, applied position, contacts, visas and career preferences — the foundation of your CV and QR code.
Institution, degree, specialisation and graduation year, plus languages, English level and additional technical skills — all shown on your CV.
Keep your emergency contact and free-text remarks. Toggle notes to append a cover-letter paragraph to the bottom of your generated CV.
For Dynamic Positioning officers: track Active and Passive DP hours across 48 half-hour slots per day and export a monthly DP Time record as PDF.
UK Midnight Position Check: auto-records your GPS position at midnight London time and checks the 12 nm territorial-waters zone for NI evidence.
Export everything to a single .sdm file you control — store it in iCloud, Google Drive or email, and restore it on a new device in seconds.
Multi-language interface with a dark mode tuned for night watches, quick search across every screen, and a tidy on-device file archive.
Explore the whole app on the free tier. Unlock unlimited documents, the full CV and device backups with a single Unlimited purchase.
Every feature maps to something seafarers actually do — revalidation, inspections, crewing and life on board.
Toggle the R badge on any voyage and SDM tallies the qualifying service in months and days against the STCW 12-month revalidation rule.
Red under 60 days, yellow at 60–90, green beyond — with push notifications so a lapsed certificate never costs you a contract.
Hand a manning agent a polished PDF résumé or let them scan your vCard QR — your full profile saved to their phone instantly.
Log Active and Passive DP hours per half-hour slot and export a clean monthly DP Time record for your logbook and DP certification.
Auto-record your position at midnight London time and prove you were outside the 12 nm UK zone — exported as a monthly PDF report.
No account, no server, no tracking. Everything lives on your phone; backups are a file only you control. Works fully offline at sea.
Organise all your maritime paperwork into clear categories — each with issue and expiry tracking and an attached PDF scan.
Expiry badge colours: red under 60 days · yellow 60–90 days · green beyond 90 days. PDFs up to 3 MB per document.
Free to download and use, with an optional Unlimited upgrade. Plus a Windows desktop app and free web tools for seafarers.
Download SDM free — no account, no card. Keep every document, voyage and certificate in your pocket and never miss a renewal again.