Open strike-point.org in Safari, tap the Share button, then Add to Home Screen. Strikepoint installs as a full-screen app: it works offline on bundled tide data, keeps your logbook on the device, and can send feeding-window and weather alerts once you enable them on the dashboard.

Open strike-point.org in Chrome, tap the three-dot menu, then Install app (or Add to Home screen). Same full app: offline tides, on-device logbook, optional alerts.

Nothing to install. strike-point.org works in any modern browser, and everything you log stays on your own device. Pair a phone and a desktop with a sync code from the More screen and your catches flow between them.

A native desktop app with a wide analysis layout (trip planner, town comparison, logbook analytics), native notifications, and a system tray presence. It updates itself; install once. Windows SmartScreen may warn on the installer because it is not code-signed; choose More info, then Run anyway.