I made an iOS/Apple Watch app with WatchKit 1.0 that uses a shared group container and a custom framework to access the same Core Data store. Now, in the transition guide fo
Yes, you'll have to maintain two separate stores. If either side is a "read-only" client and the CoreData datastore is small and changes infrequently you could potentially use the transferFile WatchConnectivity API to transfer the whole store each time it changes.