Acknowledgements

Maps

Map tiles and chart data are provided by Apple Maps.

Nautical Charts

Optional chart overlays available under Settings → Map Options are provided by NOAA's raster nautical charts and by OpenSeaMap's seamark data (buoys, lights, and channel markers), layered on top of the base map.

charts.noaa.gov  ·  openseamap.org

Weather

Current conditions and forecasts are provided by Apple Weather.

Weather data source and attribution

Tide Predictions

Tide predictions and station data are provided by NOAA's Center for Operational Oceanographic Products and Services (CO-OPS).

tidesandcurrents.noaa.gov

Marine & Weather Alerts

Active weather alerts are provided by the National Weather Service (NOAA).

weather.gov

Accounts & Data Storage

Accounts, condition reports, boats, float plans, and location sharing are powered by Google Firebase.

firebase.google.com