Passing notice from Administrator to Client

I am working on an Android App. There will be two types of Users - Admin and the client. I just want to make Admin post some notices in Plain text and then those will be notified to Clients. The question is, What should I use to make transfer of notices from Admin to Client. I read somewhere that it is possible with the help of Google App Engine and Google Cloud Messaging (GCM), but it is very complex to work with Google App Engine. Is there any better option that I can use?

Google app engine is perfect for your requirement as GCM push notifications need some sort of server. For an alternative you can try to explore Parse SDK also.