Master vs Attention Lab

Master-Nav: COLREGS IALA Tests is a free practice app developed by a Master Mariner with 30 years of seagoing experience. Test your knowledge of the USCG Navigation Rules and IALA Maritime Buoyage System — the regulations every mariner needs to know. A straightforward way to find out where you stand, identify gaps in your knowledge and track your progress over time. Master COLREGS & IALA — the easy way.

Attention Lab is a cognitive training app designed to sharpen your focus, perception and attention to detail. Complete a growing collection of attention-based tests and track your performance over time. Find the qs - Scan a grid of letters and tap every “q” as quickly and accurately as possible. Avoid the “p”. With 15 unique test banks and a 2-minute timer, no two sessions are the same. Image Perception Test - Study a scene image for 2.5 seconds, then identify what you saw from a set of options. Test your visual memory and perception across a range of real-world scenes. Features: • Multiple cognitive test types • Clean, simple design • Performance ratings and accuracy tracking • Free access to starter content • Pro upgrade for full access to all test banks and detailed results • Regular updates with new tests and content Perfect for anyone preparing for psychometric assessments, train driver selection tests, attention-based aptitude tests, or simply looking to sharpen their mental performance.