Phoca Maps maps can be displayed with help of Google Maps or Open Street Map.

 

Open Street Map:

Open Street Map (Humanitarian):

Open Street Map (OpenTopoMap):

Open Street Map (Germany):

Open Street Map (France):

Open Street Map (Black and White - be aware, this map type is currently not working. We are waiting for what will happen with this project, if it is deactivated, this option will also be removed from Phoca Maps):

 

There are even other types: Mapbox, Thunderforest (API key is needed) or Wikimedia (may be unavailable).

 

Project page: Phoca Maps plugin