NavOfficer

Maritime Calculators

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Maritime calculations with the working shown step by step. Explore 16 suites for passage planning, ship handling, stability, cargo, compass and more. NavOfficer is built for deck officers, cadets and maritime academy students. It brings more than 40 maritime calculation tools together across 16 focused suites and shows the working behind every result. CALCULATIONS FOR EVERYDAY MARITIME WORK - Passage planning - Ship handling - Cargo and stability - Compass - Marine utilities From ETA, speed, distance and time to sailing methods, CPA and TCPA, course to steer, squat, under keel clearance, compass work and stability, NavOfficer helps you reach a figure and see how it was obtained. BUILT TO BE CHECKED Results are arranged step by step in the order you would write them on paper. The method, intermediate values and final figure remain visible, so you can compare them with your own working or the relevant publication. DESIGNED FOR USE ON BOARD • Calculations run on the device • No account or sign in required • Save calculators and ship data for later use • Light, Dark and Night Bridge themes • Clear units and maritime terminology FIVE SUITES ARE FREE Use five suites without a subscription. NavOfficer Pro unlocks the remaining eleven suites through a monthly or annual automatically renewing subscription. Pricing is shown in the app before purchase. Subscriptions can be managed or cancelled in your Apple Account settings. IMPORTANT NavOfficer is a training and cross checking aid. It is not a navigation system, ECDIS, loading computer or approved stability instrument. It does not replace official publications, corrected charts, approved vessel information or company procedures. Every result must be independently verified before operational use, and the app must never be the sole means of navigation. Privacy Policy: https://navofficer.app/privacy/ Terms of Use: https://navofficer.app/terms/ Support: https://navofficer.app/support/

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The developer, Mounir Kasem, 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 Not Collected

    The developer does not collect any data from this app.

    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
    Mounir Kasem
    Size
    50.5 MB
    Category
    Navigation
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 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+
    In-App Purchases
    Yes
    • NavOfficer Pro Annual $24.99
    • NavOfficer Pro Monthly $3.99
    • Learn More
    Copyright
    © 2026 Mounir Kasem
  • Developer Website
  • Privacy Policy

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