Hi,
A small summary of charts in qtVlm:
We do not sell or provide charts ourselves.
There are two categories:
“Free” charts, that can be official and up-to-date ones in some countries like US, and some other charts that you can find on internet, usually not up-to-date and more or less legal, like CM93s or various mbtiles.
Some people create also there on charts with tools like SASPlanet and Sat2Chart. Many tutorials exist on that.
Paid charts: There are several possibilities that depend on your location. For France Atlantic/ Channel/UK and north Europ the cheapest is VMH (Visit My Harbour). These are mbtiles (raster charts).
In some countries you can also purchase charts directly vector or raster charts from an official organization, like SHOM in France.
You can also purchase S63 charts, which are encrypted S57 (vector) charts, for instance at chartworld.com. That covers all the world. Once purchased these charts can be decrypted only on your machine.
You can also use Raster charts from NVCharts, on Windows machines only.
--Philippe
