Hi yanuar,
PubNub and Urban Airship are fundamentally two different services. PubNub is designed for in-app real-time messaging generally used while the app is running (for syncing players in a game, chat apps, syncing phones with TV shows, etc). PubNub uses a “Publish/Subscribe” model that let’s you publish the same data to every phone simultaneously. With PubNub, you can do things like:
* publish data to all online users that everyone will receive at the same time. (this can be used to share the location of players in a game, for example).
* publish data between phones (for example, a one-to-one chat between app users)
* publish data to an individual phone when a server needs to push data quickly to a phone (like announcing a reward or achievement to a user).
Data that is pushed using PubNub typically is received in under 100 milliseconds.
There are some sample Corona apps here: https://github.com/pubnub/pubnub-api/tree/master/lua-corona
On the other hand, Urban Airship is generally used as a traditional “push notification” service to “wake up the phone” when a user has the phone in their pocket or they are using a different app. Though you can get the same functionality by directly using Apple’s APNS and Andoid’s C2DM service, Urban Airship makes that integration a bit simpler. [import]uid: 150318 topic_id: 26487 reply_id: 107461[/import]
