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At the mark

Field mode.

A distraction-free tide card for the pier or beach: today's session fit, the tide window, and a one-tap log. Open a mark from your plan or saved list — the URL lives under /field/[mark] and caches on your phone after the first visit.

How it works

Same engine, less chrome.

Field mode is not a separate app. It is the mark decision card without nav clutter — built for gloved hands, bad signal, and torch light.
  • Offline after first load. Tide and today's call cache in the service worker so a dead pier signal does not leave you guessing.
  • Session log on device. One tap on how it went; optional bait and note stay in your browser. Went sessions can join the anonymous accuracy pool.
  • Per-mark URLs are private. Individual field cards are noindex so they do not compete with the full mark guides in search.