Twake Chat is an open source, decentralized chat app based on the Matrix protocol. It was developed by Linagora. Twake Chat is a good option for individuals and organizations who are looking for a secure and decentralized chat app. It is also a good choice for developers who want to build their own Matrix-based chat apps.

Features
Send all kinds of messages, images and files
Voice messages
Location sharing
Push notifications
Unlimited private and public group chats
Public channels with thousand