DBG Nautical

IMO Class Dangerous Goods

Free

Comprehensive Database for Dangerous Goods

IALA Buoy Trainer

Paid

Comprehensive Training Tool for Navigational Aids

Tidal Calculator

Free

Comprehensive Tidal Calculator for Nautical Needs

Meteo Calculator

Free

Comprehensive Meteorological Calculator for Sailors

Compass Calculator

Free

Comprehensive Compass Calculator for Navigation

Navigation Calculator

Free

Navigation Calculator: an Android study aid for maritime chart work