Monkey City App for kid

Hey there, I'm just a mom trying to find out if this app is ok for my kid.

Can anyone tell me if there is a chat function in the android app that I'm not aware of? And are there ads? I've been testing the game for a few days and haven't had any ads pop up, but since the game is free I'm suspicious... If it's just in-app extras then I can block that through Family Link and it's not an issue.

Thanks!