Add tide graph to iOS app

I live on the ocean and spend a lot of time on the water in my kayak. The tide is often an important bit of information, almost as important as the weather. Perhaps an option to toggle tide graphing on or off with the ability to choose which tide station to show. I think it would be great to have the sunrise/sunset depiction be able to toggle to show tides in a graph. Possibly also moonrise/moon set/phase as a third option for that part of the display. Having all of that information available in one location would be very convenient and keep us from having to switch back and forth from Tempest app to tide app.