For the Simple Chat app, when conducting app testing, what would be the ideal test

environment settings? Specifically, how many devices or emulators are required to fully

test the app's functionality? Can I utilize Kodular Companion $($connected to Companion$)$

and an Android Studio Emulator $($with the installed $.$apk$)$ to exchange chat messages

between them?

Should we separate the login and sign$-$up processes into two screens, namely Screen$1$

$($Login$)$ and ScreenSignUp? What are the advantages and disadvantages of this

approach?

Where can I locate the database record$($s$)?$

If we want to implement a group chat function, could you please explain how it can be

done? This includes discussing the assumptions made, the components used, event

handling, logical steps, and any other relevant details.

During user testing, what types of bugs do you typically encounter?

After completing the user testing, what improvements would you suggest for this app?

Consider the following suggestions:

a$.$ Can the app support sending messages to multiple friends?

b$.$ Is it possible to create a group chat feature?

c$.$ Can users send media files through the app?