The Slack vs Microsoft Teams debate has been going for years. Both are excellent team communication platforms, but they serve different types of teams. Here’s an honest comparison for 2026.

📅 Pricing last verified: August 2026. We check and update pricing quarterly. If you notice a change, email us.

The Quick Answer

Slack is better for startups, tech companies, and teams that want the best user experience and integrations.

Microsoft Teams is better for companies already using Microsoft 365 and enterprises that need deep Office integration.

Pricing Comparison (2026)

Plan	Slack	Microsoft Teams
Free	$0 (90-day history)	$0 (limited features)
Pro/Business Basic	$7.25/user/mo	$6/user/mo
Business+/Business Standard	$12.50/user/mo	$12.50/user/mo
Enterprise Grid/E5	Custom	Custom

Key difference: Microsoft Teams is included free with Microsoft 365 subscriptions. If you’re already paying for M365, Teams is essentially free.

Slack: The User Experience Champion

Slack is the communication platform that made work messaging actually enjoyable. It’s clean, fast, and has the best integrations ecosystem.

What Slack does best:

• User experience. Slack’s interface is intuitive and pleasant to use. The learning curve is almost zero.
• Integrations. 2,400+ integrations with every tool you can imagine. The Slack App Store is unmatched.
• Huddles. Quick audio/video calls that feel natural. No scheduling required.
• Search. Slack’s search is fast and accurate, even across thousands of messages.
• Workflow Builder. No-code automations for repetitive tasks.

What Slack lacks:

• No built-in video conferencing. Huddles are great for quick calls, but you need Zoom or Google Meet for larger meetings.
• No document collaboration. Slack doesn’t have built-in docs like Teams has with Word/SharePoint.
• Free plan is limited. 90-day message history is restrictive for teams that need to reference old conversations.

Microsoft Teams: The Integration King

Microsoft Teams is the communication hub for Microsoft 365. If you’re in the Microsoft ecosystem, Teams is the obvious choice.

What Teams does best:

• Microsoft 365 integration. Word, Excel, PowerPoint, SharePoint, OneDrive all work natively inside Teams.
• Video conferencing. Teams has built-in video conferencing with up to 1,000 participants. No need for Zoom.
• Document collaboration. Edit Word, Excel, and PowerPoint files directly in Teams without switching apps.
• Included with M365. If you’re paying for Microsoft 365, Teams is free.
• Enterprise features. Better compliance, security, and admin controls for large organizations.

What Teams lacks:

• User experience. Teams is more cluttered and less intuitive than Slack. The learning curve is steeper.
• Integrations. Teams has fewer third-party integrations than Slack, though it’s catching up.
• Performance. Teams can be slower and more resource-heavy than Slack, especially on older machines.

Feature Comparison

Feature	Slack	Microsoft Teams
Messaging	Excellent	Good
Video conferencing	Huddles (basic)	Built-in (full-featured)
Document collaboration	No	Yes (Office 365)
Integrations	2,400+	1,000+
Search	Excellent	Good
Automations	Workflow Builder	Power Automate
Free plan	90-day history	Limited features
Mobile app	Excellent	Good
Performance	Fast	Slower

Which Teams Should Choose Slack?

• Startups and tech companies
• Teams that use Google Workspace (not Microsoft)
• Teams that prioritize user experience
• Teams that need extensive third-party integrations
• Smaller teams (under 100 people)

Which Teams Should Choose Microsoft Teams?

• Companies already using Microsoft 365
• Enterprises with compliance requirements
• Teams that need built-in video conferencing
• Teams that edit Word/Excel/PowerPoint daily
• Larger organizations (100+ people)

The Real Cost: A Worked Example

Scenario 1: 20-person startup using Google Workspace

• Slack Pro: 20 x $7.25/month = $145/month
• Google Workspace: 20 x $6/month = $120/month
• Total: $265/month

Scenario 2: 20-person company using Microsoft 365

• Microsoft 365 Business Standard: 20 x $12.50/month = $250/month
• Teams: Included
• Total: $250/month

Scenario 3: 20-person startup using Slack + Zoom

• Slack Pro: 20 x $7.25/month = $145/month
• Zoom Pro: 20 x $13.33/month = $266.60/month
• Total: $411.60/month

Microsoft Teams is cheaper if you’re already in the Microsoft ecosystem. Slack + Zoom is the most expensive combination.

Which Should You Choose?

Choose Slack if:

• You’re a startup or tech company
• You use Google Workspace (not Microsoft)
• You prioritize user experience and integrations
• You want the best search and workflow automation

Choose Microsoft Teams if:

• You already use Microsoft 365
• You need built-in video conferencing
• You edit Word/Excel/PowerPoint daily
• You need enterprise compliance features

For most small teams, the decision comes down to your existing ecosystem. If you’re on Google Workspace, Slack is the natural fit. If you’re on Microsoft 365, Teams is the obvious choice.

Related reading: Slack Pricing 2026 · Microsoft 365 Pricing 2026 · Zoom vs Google Meet 2026 · Google Workspace Pricing 2026 · Zoom vs Google Meet 2026 · Microsoft 365 Pricing 2026

FAQ

Can I use Slack and Microsoft Teams together? Yes, but it’s not recommended. Using both creates communication fragmentation. Choose one and commit.

Is Slack really better than Teams? For user experience and integrations, yes. For video conferencing and Office integration, Teams wins. It depends on your priorities.

Can I switch from Slack to Teams (or vice versa)? Yes, but migration takes time. Message history, integrations, and workflows need to be recreated. Budget 2-4 weeks for a smooth transition.

Which is more secure? Both are secure. Teams has better compliance features for enterprises. Slack has better security for smaller teams.

Do I need Slack if I have Microsoft 365? Not necessarily. Teams includes chat, video, and document collaboration. If that covers your needs, you don’t need Slack.