View British GPX files in OS maps
Choose your British GPX file (max size 64MB) then click Show British map which you can then zoom in to 1:25k Explorer scale.
View French GPX files in IGN maps
Choose your French GPX file (max size 64MB) then click Show French map which you can zoom in down to 1:25k scale
Maps not working? Please see the Release Notes. It could even be that my map limits have been exceeded. Please also note that all the map features here require an active internet connection.