Ah, but go south a little…
OS looks a lot better and shows tracks through the forest. If I get lost in a field I might be able to figure out where I am from the wall lines.
However, those tracks don’t go anywhere useful (old forestry experiment). OSM has the track along the Nantlle Ridge, as you would expect for a popular trail. (Of course you’d have to shut your eyes to miss this path in reality)
It’s great to have both, and throw in some satellite images too!
I tried the Viewranger app, with a view to buying maps, possibly - didn’t like the app as much as Locus. Trying Anquet (without buying any maps) means splashing out 50p! The pressure is growing!