How do i have two devices running the same app at the same time?

I have recently been trying to create an app that allows one person to play a game on one device, and the people on other devices will see the change on their devices. With this, I hit the wall of only being able to connect one device to the app inventor. My question is if it is possible to connect multiple devices to the same app at the same time by using some sort of other method.

This is typically done via an intermediate online database being monitored continually by all the players and watchers.

Search this board for Taifun's chat sample for the basic back end architecture.

thank you for the solution!

Welcome Jordan..