This app has caused several issues. And ruined fishing trips. Where I fish the right tide is the difference between water or dry land. We have 6 foot tides here in SC. I like to hunt fish on the shallow flats poling around in my skiff. We schedule trips around the tide. And several tomes after a 2 hour drive. We show up to the complete opposite tide than what this app stated:( Literally cost us hundreds in fuel cost! Spend a few dollars and get a better rated app. It will save you money in the long run.
SwampfoxSC about Tide Graph, v3.3