Looking for tide graph app for Android phone.

Graphs look pretty, but I have to question their accuracy for areas with unusual tides.

This one looks pretty for my club

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but, in reality, after high water the tide drops very slowly for an hour or two, then someone pulls the plug and the bath empties. I'd love an app that does the local calculations for each hour to draw a graph, but I've yet to find one, so I've given up on graphs, as they seem to give a false sense of accuracy.
Tidal curves are nevertheless useful especially when anchoring. In the attached example it can be seen that the tide is predicted to fall another 6 feet, irrespective of atmospheric pressure, the change is the same. So very useful when deciding where to anchor if you want to get as close to shore a possible. 1528CC73-F0D7-4E1A-920B-143ED44DF1DD.png
 
In the example of Hardway that I gave, a couple of hours after HW, you'd think the tide's already dropped the best part of a metre when, in reality, it's probably only gone down 30 or 40 cms. It wouldn't matter much, though - you'd just sink into the gloopy mud, but it's so embarrassing when you run out of water a boat length from the pontoon...

There are those who've done it, and there are those who've been lucky so far. I've done it, but only on a rising tide.

So far
 
The big problem that I have with these online websites / apps is none of them show the double or extended high water say at Poole. The picture is from admiralty tides NP 191/94 Swanage to Chichester. I don't think it is in print any more but keep laminated copies on board.

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The big problem that I have with these online websites / apps is none of them show the double or extended high water say at Poole. The picture is from admiralty tides NP 191/94 Swanage to Chichester. I don't think it is in print any more but keep laminated copies on board.

View attachment 147961
The Absolute Tides app certainly does show the double/extended HW, just as the other two examples quoted above.

Www.solocoastalsailing.co.uk
 
The big problem that I have with these online websites / apps is none of them show the double or extended high water say at Poole. The picture is from admiralty tides NP 191/94 Swanage to Chichester. I don't think it is in print any more but keep laminated copies on board.

View attachment 147961
The Absolute Tides app (which uses UKHO data) seems to show the complex double high water at Poole
 
With Tides Planner by Imray, has anyone worked out how to add more than one port to favourites?
 
One thing worth mentioning about Imray Tides Planner is that it auto updates every 5 minutes.
I have a tablet fixed on the boat displaying the tide graph. It’s permanently on and the current tide is automatically updated.
 
It always been a controversial point within IT

For your prpoees why not simply have a collection of shortcuts (on home screen maybe) to the revenant webpages? (Unless you're often outside of phone range, for which screenshots might do)
 
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