Get notification when getting new data

I’m looking to make in my ionic 2 app, kind of notification when new data is loaded.
for example,if someone write new data to firebase then the users in the app get any notification that new data into the app.
i guess it’s kind of “push notification” but in this case of “push notification” is complicated to the user to make all this process
and to make notification by himself. so i’m looking for another way.

Did you figure thus out?

not yet.
do you know how to do that?

Have a look at or more specific Is this what you are looking for?