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★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
Where this app stands in Romania, updated 8 Oct 2026
Top free
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Top paid · All apps and games
#11 –
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Performance improvements.
Deck Officer's Tools: - Compass Error Calculation - Celestial Navigation - E.T.A Calculation - Port UN LOCODE - Units Converter - True Wind Calculation The app runs offline and all calculations are done within the app using precise and sophisticated algorithms. Compass Error Calculation 64 Celestial Objects. Precise bearing and altitude. Automatic calculation of magnetic variation. Complete calculation according to all requirements. Suitable for all types of ship logs. Hiding celestial objects below the horizon is available. Celestial Navigation Three position lines for calculating the ship's position. A function is available for mapping the lines of position and the calculated position of the vessel. The sunrise and sunset function is available as well as Twilight Nautical and Twilight Civil. E.T.A Calculation High precision Great user interface Vessel speed adjustment function Port UN LOCODE 18,000 seaports Brief information on the seaport Units Converter 15 Dimensions Volume Length Angle Mass Temperature Speed Duration Area Power Pressure Frequency Energy Electric Resistance El. Potential Difference Electric Current This app will save you a lot of time and allow you to steer your boat even more safely. If you have questions or suggestions, please email yvvofficial@yahoo.com or on the Instagram page conav_.