This is a free version of Seafarers Cal.
This free version offers only true wind calculator.
Please purchase the Seafarers Cal for full version of it.
The full Version includes :
-True Wind Calculator
-Estimated Time Of arrival Calculator
-Port Stay Calculator
-Unit Converter
-World Time Converter
-Required speed Calculator
-Single interpolatio
-Double interpolation
-Radius of swing calculation
Note: Not Compatible with 4.0" 480 x 800 hdpi.