Apps that interact with each other through Bluetooth on different android devises?
<p>I want to understand is it possible to make an app that, after installing and running on 2 different devices, connect with each other in a way, for example, there is a button and a text view in the app and when I click the button on my device, it updates the text view in the other device's app, and same the other way round.</p>

<p>If yes, then please guide me what's it called and where can I read and learn about it.
Thanks in advance :)</p>
