Hot get update notifications from mobile to website

Hi All,

how to get push notification updates from mobile to web App.

Actually my project developing both web and IOS app .we have push notification requirement .
Example scenario :I have login with both ios and web .when i will do some on ios we get push notifications,at the same we need time web also we need update the notifications with out refresh or event just like Facebook notifications update

how i will do ?please give me any suggestions .