Now with access to our extended range of online test-yourself quizzes. Used by seafarers worldwide to improve and test their knowledge.

Updated with many improvements for the latest devices, including new image pinch & zoom, better styling and lots of other small tweaks for better performance. Thank you to everyone who has made suggestions on how to make the app even better than before!

Thanks for all the positive emails & feedback - we've used it to make an even better version of the original - now in use by 1000's of seafarers worldwide.