Slack vs Microsoft Teams: Which is Right for Your Business?

slack vs microsoft teams

If small businesses want to grow, they must build a strong and connected team, as well as foster a collaborative culture in their organizations. Today, there are plenty of group messaging apps available in the collaboration marketplace that can help them consolidate multiple teams and enhance productivity. For years, Slack was the most popular and preferred workplace messaging platform, but by rolling out Microsoft Teams in March of 2017, Microsoft offered a new robust alternative to it. And, in July 2018, Microsoft released the free version of Teams, further intensifying competition between it and Slack.

Today, a Slack vs Microsoft Teams debate has become common when businesses address their team communication needs. At the most basic level, both are messaging tools that enable your different teams, working in the same office or remotely, to stay connected. If you explore a little bit deeper, you will find that Slack and Microsoft Teams have their key strengths. Let’s evaluate both the apps on certain parameters to help you settle the Slack vs Microsoft Teams debate and decide which app is right for your unique business needs.


Integration with Third-party Apps

Slack’s key strength has been its capability to integrate with 1,500 of third-party applications, and its compatibility with Google Drive.

Small businesses also see it as a compelling option because it also offers integration with Salesforce.

In January 2018, Microsoft Teams, too, announced greater compatibility with several third-party apps by launching its own app directory.

Moreover, as it’s a Microsoft product, it offers collaboration with integrated Office 365 apps such as Word, Excel, PowerPoint, OneNote, SharePoint, and Power BI.


Language Support

You can display the Slack app in one of these five languages: English, German, French, Spanish, and Japanese, while Microsoft Teams tries to automatically detect the language of your browser or operating system where possible.

And, in case it doesn’t support the same language as your browser, you will get a default language – either English or a related language.


Free Versions of Slack vs Microsoft Teams

With the free version of Microsoft Teams, you get support for up to 300 people and the benefit of unlimited chat messages and search.

Moreover, it includes unlimited app integrations, enabling subscribers to add apps such as Adobe, Evernote, and Trello to Teams, built-in audio and video calling for groups.

It also offers guest access, and team file storage of 10 GB, with each member getting a 2 GB of private storage. The free version of Microsoft Teams is available in 40 languages.

Slack, on the other hand, offers 10,000 searchable messages and 10 app integrations in its free version. Moreover, it offers no free guest access and only 5GB of file storage. And, it doesn’t feature group chats but provides the option for 1:1 voice and video calls.



Microsoft Teams and Slack offer a range of range of security features. However, it is said that the former has better administrator controls due to its integration with the Microsoft Office Admin center. Both the group messaging apps offer two-factor authentication and have ISO 27001 certification.



For businesses that already have a subscription to Office 365 or wish to gain access to it, it is easier to settle the Slack vs Microsoft Teams argument in favor of Teams. If they are using Google Drive as their primary content management platform, selecting Slack makes more sense. It is also the right option for those small businesses that regularly collaborate with teams outside their organization. As Slack and Microsoft Teams both provide a free-trial option, it is better to try them out before making a decision.


About Sreeram Sreenivasan

Sreeram Sreenivasan is the Founder of Ubiq, a business dashboard & reporting platform for small & medium businesses. Ubiq makes it easy to build business dashboards & reports for your business. Try it for free today!