I want to create and monitor Geofence using GMSMapview (GoogleMaps) in iOS objective c. But after doing R & D so far, I noticed that GMSMapView does not providing any APIs and Framework to implement Geofence in iOS, I can't believe in this. It's available in Android also. 
Based on my research, Geofence is possible to implement using CoreLocation. But I want to implement using GMSMapView.

Does GoogleMap provide Geofence for iOS Platform?

Thanks in advance