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Chat Apps

Chats are at the heart of planning your event or organising your group.

Read this page for the information about choosing a chat app.

Telegram is used by XR UK for broadcasts

Is an encrypted messaging service similar to Whatsapp but with greater flexibility and features. You can edit and pin messages, see the chat history, locate media and each chat can hold a large number of people. It’s also accessible on nearly any device. A limit on message wordcount can impact broadcast posts.

Mattermost is XR’s main messaging app for working groups

It functions on its own server making it particularly secure. It is accessible on any device, and has tons of flexible features and ways of storing and searching for information. The drawback is that it can be overwhelming in layout and content and requires time to master. It’s more similar to Slack or Discord.

Signal is used by action planning groups

It’s the most secure encrypted chat, with a disappearing message function. It’s also visually clean and crisp. However, it’s not possible to edit, pin or thread messages, making it less useful for mass communications.


Whatsapp is widely used by people outside of XR, but it is not secure and is limited in its functionalities so M&M does not advise using it for organising. It also doesn’t sync up with Mattermost or other XR broadcasts.