This question was asked by one of our forum members and it is a good question. His comment was:
I have recently added wikiloc to my phone as I plan to start walking some of the more remote Caminos, starting with the VdlP.
Also started reading Gerald Kelly’s guide book but would like to supplement the maps in that guide with GPS tracks of some kind.
Read the rest of his question and all the responses on WikiLoc on the Camino on the forum.