Microsoft Teams vs Slack

Microsoft Teams

• Organizations that already pay for Microsoft 365
• Small businesses that want meetings and chat without the full suite
• Companies that want phone calling inside their chat app
• Teams that co-edit Word, Excel and PowerPoint files

Slack

• Teams that want conversations organized by channel rather than email threads
• Companies that work with outside partners in shared channels
• Organizations that already run on Salesforce
• Teams that connect many third-party apps to their chat

Microsoft Teams

• The free version is built for one person: group calls stop at 60 minutes and 100 participants, with 5 GB of cloud storage.
• Teams Essentials and the Microsoft 365 Business plans stop at 300 users; larger organizations need Teams Enterprise or Microsoft 365 E3 or E5.
• There is no Linux desktop app: Microsoft points Linux users to a progressive web app and says the Linux client is no longer supported.
• Webinar hosting is left out of Teams Essentials and Business Basic, and phone service, Teams Premium and Copilot are separately priced add-ons.

Slack

• The Free plan keeps only 90 days of message history searchable, allows 10 apps, and limits huddles and Slack Connect to 1:1.
• SAML single sign-on and SCIM start at Business+; ongoing Slackbot access is on Business+ and Enterprise+, with a limited trial on Free and Pro.
• Enterprise search, multiple SAML configurations and native data loss prevention are limited to Enterprise+, which is priced by sales.
• In a browser, huddles are supported only in Chrome and Firefox.

Microsoft Teams

Chat and channels

Chats and channels hold conversations, shared files, Loop and OneNote pages and third-party apps. Paid plans include unlimited chat messages, file attachments and search.

Video meetings

Business plans allow meetings of up to 300 participants and 30 hours, with screen sharing, breakout rooms, custom backgrounds, Together mode and noise suppression.

Recordings, transcripts and captions

Paid plans record meetings with transcripts. Live captions cover more than 30 languages on the Microsoft 365 business plans and English only on Teams Essentials.

Webinars

Webinar hosting with attendee registration and reporting comes with Microsoft 365 Business Standard with Copilot and the enterprise suites, not with Business Basic or Essentials.

Teams Phone

A cloud phone system added to a Teams license. Teams Phone Standard is $10.00 per user / month paid yearly, and US bundles that add a calling plan start at $13.00.

Copilot and Teams Premium

Microsoft 365 Copilot and Teams Premium are add-ons. Teams Premium costs $10.00 per user / month paid yearly and needs a plan with a Teams Enterprise license.

Slack

Channels and direct messages

Conversations are organized into channels for each project, topic or team, alongside direct messages. Paid plans keep the full message and file history searchable; Free keeps 90 days.

Huddles and clips

Huddles are audio and video meetings with screen sharing, 1:1 on Free and for groups on paid plans. Clips are recorded audio or screen updates shared in a conversation.

Slack Connect

Message people outside the company. Free allows 1:1 external direct messages; paid plans add group chats and shared channels with up to 250 organizations.

Canvases and lists

A canvas holds text, files, images and video inside Slack, and lists are used to manage projects and organize tasks with teammates.

Workflow Builder and apps

Workflow Builder automates routine processes without code, and the app directory lists more than 2,600 apps. A Free workspace can connect up to 10 of them.

AI in Slack

Pro includes AI conversation summaries. Business+ adds AI search, daily recaps, file summaries, workflow generation and the Slackbot personal agent, subject to plan limits.

Microsoft Teams

• Microsoft Teams (free)$0

  For one person: unlimited chat, group calls of up to 60 minutes and 100 participants, tasks and polling, and 5 GB of cloud storage.

• Microsoft Teams Essentials$4.00

  per user / month, paid yearly

  Teams on its own for up to 300 users: meetings of up to 300 people and 30 hours, recordings with transcripts, and 10 GB of storage per user.

• Microsoft 365 Business Basic$7.00

  per user / month, paid yearly

  Suite plan that includes Teams, plus web and mobile Office apps, custom business email and 1 TB of cloud storage per user. Up to 300 users.

• Microsoft Teams Enterprise$8.55

  per user / month, paid yearly

  Teams on its own for organizations of more than 300 people, with recordings, transcripts and 10 GB of cloud storage per user.

• M365 Business Standard with Copilot$23.50

  per user / month, paid yearly

  Microsoft 365 Business Standard with Copilot: Teams with webinar hosting, desktop Office apps and Copilot in the apps. Up to 300 users.

• Microsoft 365 E3$39.00

  per user / month, paid yearly (annual commitment)

  Enterprise suite for any size that includes Teams with webinars, desktop Office apps and added security. Microsoft 365 E5 is $60.00.

Slack

• Free$0

  90 days of message history, up to 10 app integrations, and 1:1 huddles and external messages.

• Pro$7.25

  per user / month, billed annually ($8.75 billed monthly)

  Unlimited message history and app integrations, group huddles, Slack Connect channels with up to 250 organizations, and AI conversation summaries.

• Business+$15

  per user / month, billed annually ($18 billed monthly)

  Adds AI search, daily recaps, file summaries and workflow generation, the Slackbot agent, SAML single sign-on and SCIM user management.

• Enterprise+Custom

  Adds enterprise search across connected apps, multiple SAML configurations, EMM support, native data loss prevention and unlimited workspaces.

Microsoft Teams

• Nonprofit

  75% off Microsoft 365 Business Premium for nonprofits

  Eligible nonprofits can get Microsoft 365 Business Premium, a suite that includes Microsoft Teams, at a 75% discount after registering and confirming eligibility.

Slack

• Annual discount

  About 17% less with annual billing

  Pro is $7.25 per user / month paid annually against $8.75 paid monthly, and Business+ is $15 against $18. Salesforce's Slack pricing page puts the saving at approximately 16%.

• Other savings

  50% off the first 3 months for new teams

  A limited-time offer for teams that buy Pro or Business+ online within 7 days of creating the workspace. It applies to monthly billing only, and standard pricing follows after 3 months.

• Nonprofit

  Free or 85% off for eligible nonprofits

  Eligible nonprofits get a free Pro upgrade for workspaces with 250 or fewer members and 85% off above that size. Business+ is 85% off at any size.

• Education

  85% off for educational institutions

  The Slack for Education program gives approved institutions an 85% discount on the Pro or Business+ plan, applied at checkout.