CaptainQuiz NAVRULES

Get the Android app on Google Play

App Description

Master the Coast Guard Navigation Rules

Take quizzes of official NAVRULES test questions from a massive test bank, complete with questions from every part of the U.S. Coast Guard's Navigation Rules publication. Track your progress, focus on your problem questions, and get ready to ace your Master's License or Deck Watch Officer exams.

Whether you are boating, sailing, kayaking, or canoeing the NAVRULES apply to you -- this is not just for maritime professionals! Perfect for boaters and sailors trying to attain a higher degree of safety and professionalism on the water. From deckhands to first mates to captains, everybody could use a little help staying sharp on the Rules of the Road.

This application includes a built-in International-Inland COLREGS reference so that you can study and learn your nautical Rules of the Road in between tests, at home or underway.


  • Play games of random questions from the test bank of over 1200 official U.S. Coast Guard questions with corresponding diagrams of lights, shapes, and situations.
  • View your scores to track your progress and see whether you would have passed an official USCG examination, and replay specific whole games.
  • Play games composed of questions which you have answered incorrectly in the past to target your trouble areas.
  • In-app NAVRULES reference contains all of the Navigation Rules in a handy in-app reference complete with diagrams (some apps and e-books charge $2.99 or more just for this feature!). This means you can go right to the reference after a test to look up rules
  • App was developed by a USCG licensed mariner in response to the challenge of learning these sometimes intricate rules -- a better way to learn ROTR based directly on experience. The feedback when you answer a question is immediate, which allows you to review the question and compare your answer to the official answer, building intuition and aiding memorization.

Comments left by real users

"I am studying for the 100 ton Masters license and had assembled many books and study aids. I even downloaded the entire database of questions (1 very thick 3-ring binder) and was going through them manually. Then I came across this wonderful app. I now use only this app and the official USCG "Navigation Rules" book (even though the Rules are included with the app). The part of the app I use most are the quizzes, which are the verbatim questions from the USCG exam. The quiz is a randomly organized 20 questions from the USCG database. It keeps score and it also keeps track of the questions you answered wrong. Those questions can be made into a separate quiz so you can keep going over the questions that you miss. The graphics are strikingly clear, the app is well organized and is a pleasure to use. If you are studying for a Rules exam this app seems to me the surest way to get prepared. I contacted the author directly and we had extensive email conversations. He was extremely helpful." - Bruce C.

"Did you get 100? This is a great app for the entire crew. Non pros also. Weekenders. Check out the others." - Martin G.

"Worth the price. Outstanding refresher tool for those that need an occasional look over both the rules and a test to sustain a higher level of comprehension." - Donnie C.

"Great help for anyone studying for exam and useful tool to keep memory fresh for us professional mariners. I got it to help crew study for exams but I am enjoying it myself." - William D.