This is an update of a Feb 2014 review: I had to write a review to balance the bad review I just read: I walk my dogs by the San Francisco Bay, and they love to walk on the sand and gooey seaweed-ed rocks. I use this app every day, to know when the tide will be low enough for them to walk on the rocks (or high enough so they wont want to, so they don’t smell like seaweed later). Regarding the calendar in Tide Graph Pro, I dont need or use it. My interest is daily or weekly. I am over 60, with recent eye surgery, and they screen is easy to read, even in the sunlight at the park.
Regarding tide stations, I just enter the location I am interested in, and the app figures out the appropriate tide station (and the information is very accurate for my purposes.) I like it enough for 5 stars: works well, easy to use, no glitches.I use this plus NOAA Buoy Data Reader, which gives the wind temp and speed. Buoy Data can also give tide data, but the tide table is complicated, with tiny print. I recommend getting both, if you live at the coast, or go there and want to know what to wear.
(I have not association with the developers of either app: I just use both of them everyday, on both an iPhone 4s and 5s)