SailGrib WR displays online charts that are automatically downloaded when you are on the Internet.
They are not nautical charts with the exception of US NOAA charts.
These “online” charts are stored in a “cache” of your device.
For your nautical charts, you can choose between 2 solutions: GeoGarage or Navionics.
- Geogarage offers a very large catalog of raster nautical charts derived from digital charts provided by the International Hydrographic Services.
These charts, updated very frequently, are available as annual subscription to a hydrographic service such as SHOM, UKHO, NOAA…
They are automatically loaded when you move around on the chart. You can, and should, also load and store all the charts of your sailing area at once.
Note that the same subscription can be used in SailGrib WR on your Android devices (phone, tablets and Chromebooks) and in Weather4D on your iPhones and iPads. - Navionics : if you have a valid Navionics Boating license, you can download and display these charts in the app at no additional cost.