Slack is a messaging app that is popular in the workplace. It has many features that make it better than other apps for communication. One of the most popular features of Slack is its message scrolling feature. This feature allows users to see all of the messages in a conversation at once, which makes it easier to keep track of what's happening. Another feature that makes Slack great for communication is its integrative capabilities. This means that Slack can work with other apps and systems in order to make communication between employees more efficient.