This is very nice indeed. I use such an app and built it from source to tweak it even further for my needs. I got by without app before, but it is nice to have. I got by last Sunday’s stroll also without a path on the screen. I had the PoIs loaded from GPX. The coolest one was missing. It alone was worth the trip 
Interested people invited to browse the area on gk.historic.place.
I did that the last few months. Response has always been very kind and forthcoming. The result can be directly observed when asking for guidance in the OSM main page. Who to take care of the many dozens of other consumers of OSM data?
And Now for Something Completely Different, one more photo form last Sunday stroll:
Ten or so metres away from the setting sun on a path with a (dead?) tree in the midst of it. We pedestrians not on rails, luckily.