Do not download!
App does NOT work. Save your money. Freezes immediately rendering it entirely useless. If you are on a boat and need to reference this app,
Step 1.) Remove waterproof case.
Step 2.) Hold phone over water.
Step 3.) Release phone.
You will then get the same amount of information this app provides you with. (Put a "-" in front of my star because its less than zero stars.)
arnpriester about
The Captain's Toolbox