Cardinal Marks on sea

Cardinal marks can help you learn which side of the mark you need to go. It use compass of your device to determine azimuth of the mark, with azimuth your relative position and direction that you must follow to safely avoid danger.My test showed that build-in compasses are not very accurate, specially in sea condition on boat. You should always keep device in horizontal position with 'head' towards the mark and double check azimuth with real compass.
Sailing out on ship without knowing 'rules of the road' is very dangerous. Please use this nautical app, learn this small part of the rules and make your marine navigation bit safer.

This app is available on English and Croatian language.Croatian name is Kardinalne oznake na moru.

Please visit my website for more nautical and sea related educational apps!

Many thanks to Denis Toić who let me test on his HTC :)

Thank you all for using and commenting this app!

Category : Education

Reviews (15)

pau. s. Sep 27, 2018

They dont know a thing what these buoys mean.

T. T. Jun 19, 2016

The app while intended to be educational is very misleading - and I'd go so far as to say dangerous - as the yellow and black bouy the cardinal top marks are shown on are the same in each case. Wheras the yellow and black markings on cardinal bouys also change depending on whether it's a N S E or W bouy. Please use proper images of cardinal bouys rather than photoshop the top marks of the same bouy. That done, this would then become a useful app.

Hus. S. Jul 9, 2013

Simple & easy to use, great app. Would be great if can display when 'lighted' too. no more needed to get a 5 star. thanks

Dee. C. Jan 21, 2016

Only 4 buoys in full app

A. G. u. Mar 17, 2012

Big thanks to creat this app. Plz improve it as much as possible . Good work

Fau. A. A. Sep 8, 2014

i like it very much it is a great app tq

Nav. K. Sep 19, 2014

Good information

Tim. M. Feb 17, 2017

Stupid

Sir. J. P. Aug 24, 2016

Misleading advice on cardinal marks. Don't use.

A. G. u. Apr 9, 2012

As a navigator, this app is a very poor substitution for proper training.

A. G. u. Aug 3, 2012

Need space of improvement.. Feezoul_WKO

A. G. u. Oct 23, 2012

very useful application for navigators.thz u

A. G. u. Aug 31, 2012

This good app

byp. v. Apr 13, 2016

Easy to know about cardinals

Kam. K. Jul 14, 2016

It is useful