A free passage-timing tool for the Pacific Northwest and southern British Columbia, built to automate one of the more tedious parts of planning a trip.
TidePush was built to automate one of the tedious parts of Pacific Northwest passage planning: working out how boat speed, tidal currents, weather, daylight and several current-sensitive passages interact across a whole trip.
Every underlying number can be looked up independently. The difficult part is integrating all of them forward in time, so that the current or sea state evaluated at a gate is the one the boat is expected to meet when it actually gets there — not the one running when it left.
83 curated passages across Puget Sound, the San Juan Islands, Admiralty Inlet, the Strait of Juan de Fuca, the Strait of Georgia and the Gulf Islands, with the NOAA and CHS current stations that govern each leg.
TidePush is focused on passage timing. It is not a chartplotter, not a cruising guide, and not a substitute for a skipper's judgement. It does not know your boat the way you do, it does not see what is out of the window, and it says so in the places where that matters.
Where a capability is planned but not built, it is listed as such on what TidePush does not do yet rather than quietly implied.
No account, no ads, and no tracking of individuals. Every plan is computed on your own device. The app sends one anonymous count when a plan completes online — the route, the boat preset, the rig and how many days were scanned — with nothing that could connect two counts to the same person. Planning offline sends nothing at all.
TidePush is currently free to use. Support is optional and unlocks nothing: there is no paid tier, no feature held back, and no upgrade prompt.
Related: How TidePush works · Version history