Knowing the daily tides (the depth of the water at any given place) and currents (the speed and direction of the water's movement) can be essential for a boating excursion. AyeTides provides this important information for nearly 10,000 locations worldwide in tables and interactive graphs. You can check what will be going on today or well into the future. AyeTides also tells you when the sun and moon will rise, and how the moon affects the tides.
The app costs $9.99 to download, but once you have it, you're good to go. The information is contained within the app, meaning you don't have to worry about downloading data for certain regions. Nor do you need a network connection to use it. You can access AyeTides wherever you go.
The moon and tides are somewhat predictable. But weather is less so, and changes in the weather can have immediate effects on your boating excursion.