3. Slack
Communicate with everyone in one place with Slack that ranks third in our list of free business productivity tools for small businesses! Known as the “Team Communication for the 21st century,” this app allows you to make messaging or chat channels with different teams in your company. You can make a channel for your projects, managers, or other groups. It also has private channels for confidential or sensitive conversations. You can send direct messages to individuals, too. Slack works on desktop and mobile as well.
