ios - Sharing information in application -


i working on new app, , i'm trying figure out how can implement next thing on iphone programming.

iphone writes list of names in application
iphone b notified , came application , see list of names

my question is: how share things between iphones. server connects iphone or what? , how need work.

send data iphone server, server send push notification iphone b, user start app on iphone b , download new data. if app running on iphone b should observer push notificating , don't forget download new data...


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