Please be aware of a chat room application called Discord.  This app is commonly used by gamers to talk to each other whilst gaming.  Users can send direct messages to one another or listen in to larger group chats.  Connecting with friends is easy - users can simply join an existing gaming server or send an email invitation to start a new one. Most significantly, you do not have to download an app to use it as it can be accessed via any browser and is free to use.

The link  below provides more information about Discord, with some parental advice relating to the app.

https://41d1fc02-de09-4df3-896a-35006c4ca0d7.filesusr.com/ugd/73774b_094d07a9b57249769f39438fba35b4c2.pdf