App helps in solving many equations and conversions that are associated with marine navigation.

App include the following calculations

Conversions Calculators
Distance Calculators
Weather Data Calculators
Log and Trig Calculators
Time Zones Calculators
Celestial Navigation Calculators
Sailings Calculators

App is helpful for
Mariners
Sailors
Fishermen
Divers

Fully functional
Compatibility with latest iOS
All feature & updates are free
Universal App
No Ads

NOTE:
While using GPS it is important first to calibrate your location, so that search results are accurate and to the point.

"Continued use of GPS running in the background can dramatically decrease battery life."