Slack vs Microsoft Teams- A detailed comparison

by | Oct 26, 2020

With many organizations killing their most valuable time on the email chaos and ending their days getting to the other end of it, it’s a no brainer that it was high time we needed a much more efficient means of communication. With team communication tools just around the corner, we could see the initiation of better and organized workspace conversations and collaborations.

While we were crafting Flujo, we wanted to leave no stone unturned to encapsulate all our productivity tools under one roof. The dedication drove us to try out what the predominant software has to offer and how we can fill the void and make our tool a better experience for users.

Here are some core components that help distinguish the qualities and shortcomings of each one of them.

Slack vs Microsoft Teams: Pricing

Both Microsoft Teams and Slack come with a freemium option that lets you try out the app for free but with limitations or some cap on most features.

With an annual billing per user per month, the standard charges are up to $6.67. In contrast, the plus structure costs about $ 12.50 per user per month.

For Microsoft Teams though the office 365 business essentials cost $ 5 per user per month. Whereas the premium structure costs $ 12.50 per user per month

An additional benefit that we noted here is that Microsoft Teams allow for a 30 day trial for both paid plans.

If pricing turns out to be a hitch while picking one of the tools, you may want to check out Flujo as an alternative. It’s more affordable than Slack or Microsoft Teams while offering more advanced native features such as Drive, Calendar, Notes, and Kanbans.

Slack vs Microsoft Teams: Messenger

One of the essential elements of a team communication app and one that can certainly not be compromised is the messenger.

Both Slack & Microsoft Teams come in with many features like @mentions so that messages don’t get lost and are well directed. In Slack, Conversations are instant messages, whereas, in Microsoft Teams, all-new conversations are created as a Posts with a reply option to keep conversations structured. To make the conversations more structured, Slack as an option “Reply to Thread”

If you are always swamped with work and don’t have any idea where the messages slipped away, you can filter and look for messages by channels. Both Slack and Microsoft Teams lets you search any message or file through a universal search tab with multiple filtering criteria/options.

An added advantage with Microsoft Teams is how the messenger is integrated with different sections as a tab like Files, Wikis, Notebook, or any other Office 365 suite app or a 3rd party app. This makes it easier to access any information related to a particular channel.

Both Slack and Microsoft Teams let the user control notifications for each channel to choose the preferred notifications type with options as “All notifications” or “Only @mentions & Direct Message” to cancel out the noise from direct action items.

To add to the coolness, Slack lets you react to a message with emojis & in Microsoft Teams, one can reply to a post with more options like an Emoji, GIFs & Stickers. Also, the text editor of Microsoft Teams is more feature-rich Slack, including features that let you edit the text with options like bold, italic, bullets, changing the fonts, and color.

In slack, message history is limited to 10 K messages in the free plan and is unlimited in all the paid plans. Microsoft Teams have an unlimited message history in all the plans. 

Slack vs Microsoft Teams: Calling

Coming to yet another aspect of a business tool – Calling! It looks like calling is the feature where the tables turn, and Microsoft has the edge over slack.

Slack accommodates 15 participants in a group video call, but only in the paid versions. Though there are one on one calls in all the plans (including the free plan).

Microsoft Teams come in with instant calling, with an additional feature of scheduling a call, which makes up for a helping hand when the going gets busy in day to day work. In comparison to Slack’s limited number of participants that too in a paid version, Microsoft Teams offer an option of including around 250 participants. It also lets all the participants collaborate through a Whiteboard.

Slack vs Microsoft Teams: File sharing and Collaboration

Both Microsoft Teams and slack allow users to share the files in a channel in a team available there. While Slack enables you to share files up to 1 GB, MS Teams allows you to share files up to 15GB.

Cloud storages are the next level work tool, and some work operations are just unimaginable without it. Microsoft Teams come in with integrations like one drive, google drive, and few other cloud storage solutions to accommodate cloud storage. The view & sharing of files is made easy as you can view all the files as per the drive & share folder structure from there to any channel.

In Microsoft Teams, collaborating with your teams is more manageable as your favorite apps can be tabs inside a channel. For example, you can add Wikis, Notebook, Word document tab to a channel, and all the members of that channel can collaborate on each of these tabs simultaneously.

Slack’s best bit for collaboration is through Open channels that allow members from other groups to access and communicate in the other open channels.

Slack vs Microsoft Teams: Productivity & Workflow Management


Slack lets you create a reminder from any channel or message & the slack bot reminds when it sets off.

Another unique feature in Slack is that it lets you get an email from your inbox into Slack in the Slackbot channel from where it can be forwarded to any channel or DM.

These two features are not provided in Microsoft Teams.

Workflow / Task Management

For task management in Slack, this can be done only with other 3rd party apps by adding them to any channel.

On the other hand, Microsoft Teams help you create Kanban boards, with the Office 365 native app Planner, for any channels and assign tasks with specifics like due dates, checklists, and attachment.

A proper decluttered list view for kanbans makes it easier to understand and picturise the workflows. Since companies need to keep up with their deliverables and their structure, Kanban boards at Flujo helps you tag and filter the cards, set due dates and be notified about the updates on each card for an enhanced result driven experience.

Slack vs. Microsoft Teams: Onboarding and Navigation

On this front, onboarding and navigations are easier in Slack as compared to Microsoft Teams. Both provide proper usage analytics to gauge performance.

Setting up accounts and getting started on Microsoft Teams, on the other hand, is a time-consuming task. A Slack account requires a lot fewer details are required while setting up & happens in a jiffy. Both Microsoft Teams and Slack allow non-business email Id.

Also, Slack has a wide range of themes that helps to customizable your workspace. Microsoft Teams only provide three themes to choose from Light, Dark & Contrast.

Slack vs Microsoft Teams: Multiple Workspaces & External Guests

Slack allows users to be a part of multiple workspaces at the same time. Open channels allow members from other groups to access and communicate in the other open channels.

Guests can belong to a single channel or multiple channels & can be invited to your workspace just like regular members via invitations.

On the other hand, separate organizations can work together in Slack, each from within their own Slack workspace with Shared Channels where team members from both organizations can be added on a need basis and can send messages, share files and access the channel history.

External collaboration is handled very differently in Microsoft Teams in two ways: External Access & Guest Access. External access lets external users in other domains find, call, chat, and set up meetings with you. External users have no access to your organization’s teams or team resources.

Guest access can be used to add an individual user (regardless of domain) to a team, where they can chat, call, meet, and collaborate on organization files (stored in SharePoint or OneDrive for Business) using Office 365 apps. A team admin has control over what a guest can or can’t do. A guest user cannot access two Microsoft Teams accounts/workspaces at the same time.

Slack vs Microsoft Teams: Integrations

Slack offers ten integrations in the free plan, whereas the number can be stretched to 200+ integrations. Microsoft Teams come equipped with 600+ apps, which is still lesser when relating it with slack.

Microsoft Teams being part of the Microsoft Office 365 suite of apps, it naturally integrates with all the other Microsoft apps like Notebook, Excel, Word, Powerpoint, PowerBI, Planner, OneDrive, etc.

Slack vs Microsoft Teams: Summary

The messaging feature is where you see both the competitors on common ground and have great features. The most important difference that sets both the platforms apart is the ease with which you can set up a Slack account and navigate it. With Microsoft Teams, you need the input more data and time to get started. In terms of navigation, the number of options and the user interface in teams is a little less simplified compared to Slack. The learning curve turns out to be a notch higher than the overall user interface experience of Microsoft teams.

While both Slack and Microsoft teams have aced their game on the calling and messaging front, there are some gaps that are yet to be filled in an all-around team communication app. While working on either of them, you are bound to head to other integrations that take you outside the app.

Here’s how Flujo fills the gap:

We at Flujo have built a team communication & collaboration suite with the most needed elements of an integrated workspace like task management & workflow management. We have brought all other workspace essentials like messenger, calling, drive, calendar, and kanbans in a single tool. You can know more about all our features in detail here.

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