It's amazing how easy it is possible to use geofencing with Google Maps API. However for that you have to be "connected" and use online maps. However I can not find how to use geofencing functionality for offline maps and what, if any, offline map provider supports it on Android. Would be thankful for any help here.
Well, I ended up with some hybrid solution. I used MapBox and Open Street Maps for offline map functionality together with Google Play services that allowed me to add geofencing functionality. Somehow I was thinking that geofencing requires to use Google Maps and that was obviously not correct.