Your trip companion
Say where, when and what you're after — or ask "what's the tide doing on Saturday?" — and it plans the session, checks the access and answers from the forecast, the tides and the mark guide. Today's plan is free for everyone.

Free at every tier
Add it to your home screen and it opens like an app: one tap to today's forecast, the full-screen map and your saved marks. There's nothing to download and it isn't in an app store, so it takes about ten seconds.
The steps differ by phone and browser. We've picked the one you seem to be using; switch if that's wrong.
Opens in its own window, without the browser around it.
Safari and Firefox on desktop do not install web apps; on a phone, the steps are under iPhone and Android.
Use Google, or ask for an email link. The email also carries a six-digit code: type it into the sign-in screen you already have open and the app signs in there and then. On iPhone the link in Mail opens Safari rather than the app, which is exactly what the code is for.
It doesn't need to be. The site itself is the app: adding it to your home screen gives it an icon, a full screen and its own window, and every update reaches you the moment we publish it. Forecast alerts still arrive by email for now; notifications on the phone are on the roadmap.
Stuck? Get in touch and say which phone and browser you're on.
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The September update, part two
The trip planner is now a conversation, the map is a proper nautical chart, and the whole site fits on your home screen.
Say where, when and what you're after — or ask "what's the tide doing on Saturday?" — and it plans the session, checks the access and answers from the forecast, the tides and the mark guide. Today's plan is free for everyone.
The map's Chart layer is now a nautical chart: depth bands, contours and soundings from open survey data, in metres or feet.
Add Where's The Fish to your phone and it opens like an app, with a back button and a six-digit sign-in code that works inside it. Nothing to download.
Get the app
Opens in its own window, without the browser around it.
Free at every tier. No app store, nothing to download.