I'm buying Minecraft Android App but when I'm inviting something they can't join or same situation facing me...also when I go to help section that's section I doesn't seem any Android option... only available PC version...@MojangSupport

Are you trying to invite a friend to join your world, a Realm, or server? Are you encountering any error messages? If you can provide just a little more details about the situation you're facing, we can help clarify or point you in the right direction! ^FF

I'm using Android App

Gotcha, in that case please try submitting a new help request at aka.ms/Minecraft-Support and we will assist. If you don't see your platform, make sure you're choosing the right game (Minecraft, not Minecraft: Java Edition). ^LK

I'm Using Android App what i select ???