Since March 2021, you have the choice between 5 sources :
- GeoGarage
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…
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. - NavionicsYou have a Navionics Boating subscription? Use your Navionics charts directly in SailGrib WR at no extra cost.
- Chart atlases in SGTiles formatThese atlases of raster charts purchased as in-app purchase before March 2021 come from hydrographic services such as SHOM and UKHO.
These atlases, which are difficult to update, are no longer sold in the app. They have been replaced by the GeoGarage service. - Chart atlases in MBTiles format proposed in the applicationCes atlas de cartes raster, principalement de la NOAA, sont proposés gratuitement dans l’application.
They are updated by NOAA very frequently. - Your own charts in MBTiles formatThis is the map format specified by MapBox. (https://docs.mapbox.com/help/glossary/mbtiles/)
Many tools are available on the Web to create charts in this format.