This app is what every boater needs, terrific!

Just got it. Love it already. Love the leeway calculator.

Many more tools than advertised!

Had it just for a short while now, no crashes. Opens every time and has way, way more info then I ever thought it would have.

One significant issue with propeller sizing: it fails to take gear ratio into account so the result is that the recommended propeller size is much larger than necessary.

This was a great app before the newest version, but it is now outstanding! This is the first review I have written for any app, and I have several hundred, many of which I've deleted after not finding them useful or them being the best of a category. This newest version of the app just does so much, and the UI is beautiful and elegant.

Very good basic tool for general sailing. Unfortunately it does not have yet a True Wind Calc which would be very useful for sailing in any environment. Have to say the Air Pilot Calc has it.

This has everything that a boater will ever need. Excellent app and well worth the money.

Awesome ! Please do one for windows phone !

A remarkably useful app! Very informative and practical! Love the interface and page layouts. Keep up the good work!