This app was mentioned in 2 comments, with an average of 1.50 upvotes
I use this when I saltwater fish. Haven't gone in a while but from what I remember, tides were always accurate for me. https://play.google.com/store/apps/details?id=jp.gr.java_conf.hanitaro.tide
I use tide chart but I am also not landlocked, so I use the tides in my work.