This is an open-source alternative to Slack, where you can create as many channels, users, and messages as you want. It is also very useful for managing teams around the world because it supports multiple languages.
You can set certain notifications of priority
Enables you to shift from mobile to web version very smoothly
Suits small businesses only
Installing the software is difficult
Difficult to search for a conversation
Mattermost is very simple and easy to use. It only fits small businesses because when more members are added to the meeting, the software goes through technical lags.