Master-Nav is an Android application developed by PJCC APP DEV in the Education & Reference category. It is a progressive learning system that makes it easy to learn, memorize, and refresh the COLREGS. Master-Nav offers a comprehensive platform that caters to both learning and practice needs. With over 790 questions, the app provides an intuitive and engaging way to prepare for your professional maritime qualifications.

The app's unique interactive visuals, memory aids, and exam answer phrases replace the need for slogging through the rule book. Master-Nav covers Part A General, Part C - Lights and Shapes, and Part D - Sound and Light Signals, ensuring that you grasp every aspect of the rules with ease. As you progress through the app, you'll encounter review questions to assess your understanding and ensure you have fully memorized the rules. The app reinforces your knowledge repeatedly, making it effortless to memorize and refresh the rules.