Connect multiple users with a Ionic app

I need to connect 2 or more users using the same app. Its like a chat app, but I’m not looking for that function.

Anyone knows what I need to build that?
I’m a solo and newbie developer xD

[EDITED]
The users gather in a room. One of them, lets call him Master, will send the others a “message”. An image picked from the app it self. Like everybody is using the same app, when the receiver gets his “message” the app will prompt the same image he “get” but the source will be his own app.

I don’t know even the setup of a server or if I’m gonna need one.
[/EDITED]
Thx for your help!

If you are creating chatting app then you have to refresh your page again and again for load upcoming request…For example you are on that page where you are chatting with person 1…and person 1 is also replying your message that time you have to set interval for receive that message

You may use $interval of angularjs for this purpose. go to documents if needed more support with example

Hi Shivani, i don’t need the chat feature. It’s more like this:
The users gather in a room. One of them, lets call him Master, will send the others a “message”. An image picked from the app it self. Like everybody is using the same app, when the receiver gets his “message” the app will prompt the same image he “get” but the source will be his own app.

I don’t know even the setup of a server or if I’m gonna need one.
English is not my mother language and sometimes its a barrier to me xD

Any ideas?