YOS — Yacht Operating System

Superyacht Management ERP

Free · Designed for iPad. Not verified for macOS.

YOS (Yacht Operating System) is the all-in-one maritime ERP built for superyacht operations. From planned maintenance to crew management, safety compliance to financial oversight, YOS replaces scattered spreadsheets and paper logs with a single, powerful app that works offline. Designed by a working captain, YOS understands the realities of life onboard. Whether you are mid-ocean with no connectivity or docked with full Wi-Fi, every module works seamlessly thanks to offline-first architecture. KEY FEATURES - Planned Maintenance (PMS): work orders, recurring jobs by hours or calendar, equipment registry, spare parts, full maintenance history ready for flag state or class inspection - Crew Management: watch rotations, MLC-compliant hours of rest, certificates with expiry alerts, onboarding, complete crew records - Safety and Compliance: SOLAS drills, permits to work, non-conformities, ISM/ISPS documentation, pre-loaded SMS templates - Digital Logbook: deck log, navigation log, Oil Record Book, Garbage Record Book - Finance: expenses with receipt capture, budgets, bank reconciliation, multi-currency, purchase orders - Inventory and Procurement: real-time stock, barcode and QR scanning, low-stock alerts, supplier management - Voyage Planning: passage plans with waypoints, live navigation data, fuel logs, automatic position logging - Documents and Library: centralized vessel documentation with expiry tracking - One-tap Face ID / Touch ID login, one-tap printing, QR deep links, dark mode and tactical night mode WHO IS YOS FOR Captains, chief engineers, pursers, HOD stewardesses, fleet managers and yacht management companies. YOS accounts are provisioned per vessel. Crew join by invitation from their vessel administrator.

Ratings & Reviews

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Redesigned onboarding and instant demo experience. Refreshed store gallery with live telemetry, AI Captain and voyage analytics. Unified version 1.34 across platforms. Stability improvements.

Version 1.34

The developer, Marko Kus, 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

  • Data Not Linked to You

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

    • User Content
    • Identifiers
    • Diagnostics

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

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Marko Kus
Size
18.3 MB
Category
Business
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPad
    Requires iPadOS 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.
Languages
English
Age Rating
4+
Copyright
© 2026 Marko Kus
  • Developer Website
  • Privacy Policy

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