About this app
Application for studying night lights and daytime figures of vessels in accordance with the requirements of the COLREGs-72. The application allows you to observe the night lights of different types of vessels from different angles. Understanding of COLREG navigation lights allows you to correctly estimate vessel position, its maneuvering capabilities and to determine the nature of its work at night time and in poor visibility conditions. The application will be useful to navigators and those who prepare to become one. The app supports dark mode. We welcome comments and suggestions to our e-mail: support@appsforeach.com
Latest release
What’s New
Expanded the list of vessels.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 11, 2026 · 12:37 PM $1.99
Screenshots
