Slack vs Microsoft Teams: Compare Features, Pricing & Security (original) (raw)
6 reasons customers choose Slack over Teams:
Your business doesn't need another disconnected app—it needs a place where work easily flows. Slack brings your people, your apps, and your AI together to move your business faster. It's why even customers using Microsoft love Slack: it's the place where all their tools finally click.
When AI is treated like an add-on, it lacks critical context. In Slack, AI is part of the team. And with company knowledge built-in, Slackbot — your personal agent for work — has what it needs to actually be useful.
Slack is the best home for all your solutions. Every third-party app and agent, from Microsoft 365 to Figma, is deeply connected across all your channels, so they work exactly how you want them to.
Your business doesn't need another disconnected app—it needs a place where work easily flows. Slack brings your people, your apps, and your AI together to move your business faster. It's why even customers using Microsoft love Slack: it's the place where all their tools finally click.
When AI is treated like an add-on, it lacks critical context. In Slack, AI is part of the team. And with company knowledge built-in, Slackbot — your personal agent for work — has what it needs to actually be useful.
Slack is the best home for all your solutions. Every third-party app and agent, from Microsoft 365 to Figma, is deeply connected across all your channels, so they work exactly how you want them to.
AI-powered enterprise search in Slack lets you find answers based on real-time business knowledge from your apps, conversations, and files.
Any employee can effortlessly automate and scale their work with the workflow builder in Slack. When workflows are this simple to create, they aren't just used more — they're loved more.
With Salesforce in Slack, you can act faster on real-time customer data. Updating records, improving adoption, and driving data quality right where you're already working.
AI-powered enterprise search in Slack lets you find answers based on real-time business knowledge from your apps, conversations, and files.
Any employee can effortlessly automate and scale their work with the workflow builder in Slack. When workflows are this simple to create, they aren't just used more — they're loved more.
With Salesforce in Slack, you can act faster on real-time customer data. Updating records, improving adoption, and driving data quality right where you're already working.
One is built to work with the Microsoft 365 suite. The other is built to be your entire operating system for work. Sure, Slack and Microsoft Teams may seem like they have a lot in common, but under the surface they're fundamentally different solutions that deliver different results.
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|---|---|---|
| Channel Flexibility | Unlimited channels — all in one place. Change between channel types anytime. | Capped at 1,000 channels per team. Channel types aren't flexible. |
| External Collaboration | Slack Connect is easy to set up, built on Slack security, and supports all features for both orgs. | Needs multi-step configuration of Microsoft Entra B2B Direct Connect. All features not supported |
| App Integrations | Slack integrates with over 2,600 apps , which are supported consistently across channel types. | Many apps are not supported across all channel types. Apps are pinned in tabs, hiding data and forcing you to toggle. |
| Automation | Workflow Builder is a native, low to no-code tool for easily creating and scaling automations. | Requires Microsoft Power Automate. Workflows may not be supported across all apps and channels. |
| AI Everywhere | Native AI is available on all paid plans and is embedded consistently across all features. | Requires add-on Microsoft 365 Copilot licenses. Not supported consistently in chats, channels and Teams experiences. |
| AI Agents | All your agents and AI apps integrate seamlessly and consistently on all channel types. | Requires Copilot license and IT configuration. Agents deployed as custom apps not supported in all channel types. |
| Personal AI Agent | The all-new Slackbot is your personal agent for work. With unparalleled business context and personalized output, Slackbot can give you a serious boost. | Copilot is generic and requires context switching to access, not available in all parts of Teams. |
| Enterprise Search | Built into Enterprise+ Plans. Lives in the Slack search bar. Connects to apps like Microsoft 365. | Requires add-on Microsoft 365 Copilot licenses. Can only access through the Copilot interface. |
| Dynamic File Sharing | Work objects deliver AI summaries, rich previews, & third-party app data next to your conversations. | File sharing is designed primarily around SharePoint and OneDrive. |
| Salesforce Integration | Slack is the conversational interface for Salesforce with instant access to real-time customer data. | Basic record search, record editing limited to desktop version. |
Comparison table data as of December 2025
|
|
|---|---|
| Channel Flexibility | |
| Unlimited channels — all in one place. Change between channel types anytime. | Capped at 1,000 channels per team. Channel types aren't flexible. |
| External Collaboration | |
| Slack Connect is easy to set up, built on Slack security, and supports all features for both orgs. | Needs multi-step configuration of Microsoft Entra B2B Direct Connect. All features not supported |
| App Integrations | |
| Slack integrates with over 2,600 apps , which are supported consistently across channel types. | Many apps are not supported across all channel types. Apps are pinned in tabs, hiding data and forcing you to toggle. |
| Automation | |
| Workflow Builder is a native, low to no-code tool for easily creating and scaling automations. | Requires Microsoft Power Automate. Workflows may not be supported across all apps and channels. |
| AI Everywhere | |
| Native AI is available on all paid plans and is embedded consistently across all features. | Requires add-on Microsoft 365 Copilot licenses. Not supported consistently in chats, channels and Teams experiences. |
| AI Agents | |
| All your agents and AI apps integrate seamlessly and consistently on all channel types. | Requires Copilot license and IT configuration. Agents deployed as custom apps not supported in all channel types. |
| Personal AI Agent | |
| The all-new Slackbot is your personal agent for work. With unparalleled business context and personalized output, Slackbot can give you a serious boost. | Copilot is generic and requires context switching to access, not available in all parts of Teams. |
| Enterprise Search | |
| Built into Enterprise+ Plans. Lives in the Slack search bar. Connects to apps like Microsoft 365. | Requires add-on Microsoft 365 Copilot licenses. Can only access through the Copilot interface. |
| Dynamic File Sharing | |
| Work objects deliver AI summaries, rich previews, & third-party app data next to your conversations. | File sharing is designed primarily around SharePoint and OneDrive. |
| Salesforce Integration | |
| Slack is the conversational interface for Salesforce with instant access to real-time customer data. | Basic record search, record editing limited to desktop version. |
Comparison table data as of December 2025
"I finally have a place where I can communicate with my entire organization to share experiences, wins, and learnings. Plus, we've seen massive productivity gains. We couldn't be happier with our choice to implement Slack."
"Before Slack, decisions got lost across email and Teams conversations. Now, context lives in channels — searchable, connected to the record, and tied to the workflow. We move faster because the information our teams and AI need is always right there."
"We think of Slack as the connective layer across our ecosystem. Microsoft 365 remains foundational, and Slack complements that by bringing coordination and visibility into the flow of work — each playing to its strengths."
"I finally have a place where I can communicate with my entire organization to share experiences, wins, and learnings. Plus, we've seen massive productivity gains. We couldn't be happier with our choice to implement Slack."
"Before Slack, decisions got lost across email and Teams conversations. Now, context lives in channels — searchable, connected to the record, and tied to the workflow. We move faster because the information our teams and AI need is always right there."
"We think of Slack as the connective layer across our ecosystem. Microsoft 365 remains foundational, and Slack complements that by bringing coordination and visibility into the flow of work — each playing to its strengths."
"I finally have a place where I can communicate with my entire organization to share experiences, wins, and learnings. Plus, we've seen massive productivity gains. We couldn't be happier with our choice to implement Slack."
"Before Slack, decisions got lost across email and Teams conversations. Now, context lives in channels — searchable, connected to the record, and tied to the workflow. We move faster because the information our teams and AI need is always right there."
"We think of Slack as the connective layer across our ecosystem. Microsoft 365 remains foundational, and Slack complements that by bringing coordination and visibility into the flow of work — each playing to its strengths."
"I finally have a place where I can communicate with my entire organization to share experiences, wins, and learnings. Plus, we've seen massive productivity gains. We couldn't be happier with our choice to implement Slack."
"Before Slack, decisions got lost across email and Teams conversations. Now, context lives in channels — searchable, connected to the record, and tied to the workflow. We move faster because the information our teams and AI need is always right there."
"We think of Slack as the connective layer across our ecosystem. Microsoft 365 remains foundational, and Slack complements that by bringing coordination and visibility into the flow of work — each playing to its strengths."
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But wait, there's more.
Frequently Asked Questions
Slack and Teams have overlapping features, but they're used to support work in fundamentally different ways.
Slack is a work operating system that transforms how teams collaborate by bringing together people, data, AI, and apps into one intelligent platform known for its simplicity, flexible design, and user-friendly UI.
With its channel-based architecture and real-time collaboration capabilities, Slack enables asynchronous work and reduces email and meeting dependencies, making it the ideal foundation for modern, distributed teams to achieve faster decision-making and improved productivity.
Teams is designed to work seamlessly within Microsoft's apps, though this tight integration means it's optimized primarily for Microsoft's suite of applications and follows an email-centric workflow model. This can limit flexibility when integrating with third-party tools and non-Microsoft applications.
The difference often comes down to where your data lives. Slackbot is your personal agent for work, connected to the tools and data sources you've already integrated with Slack. For example, a sales rep can query a live Salesforce pipeline or pull answers from an HR knowledge base without ever leaving the conversation. Microsoft Copilot is built for the Microsoft 365 ecosystem and works well when your data lives there. For teams working across a broader mix of tools, Copilot's reach is more limited by comparison. AI is only as useful as the data it can actually access.
Yes. Slack is built to be agent-friendly from the ground up — you can add agents to channels, automate workflows, and connect to tools across your entire stack, regardless of vendor. In Teams, deploying agents typically requires additional Copilot licensing and IT configuration, and agents deployed as custom apps aren't supported in all channel types. Organizations mapping out an AI agent strategy should factor in how easily their platform can accommodate new agents as the category evolves.
Slack's search is purpose-built for conversation-first work — surfacing the right message, file, or thread even across years of history and connected apps. Teams search is more limited in scope; locating past conversations or documents across channels can be difficult, particularly outside of the Microsoft 365 environment. In a platform where decisions and institutional knowledge live in real-time chat, the ability to retrieve that information quickly has a direct impact on how fast teams can move.
Slack Connect lets you bring external partners, vendors, and customers directly into shared channels — secured by enterprise-grade permissions and the same Slack experience your team already uses. It's particularly powerful for customer success, sales, and support teams; some organizations have even extended Slack Connect access to key accounts as part of premium support packages, for example giving customers a direct line to engineering teams. Teams offers guest access, but it requires multi-step configuration through Microsoft Entra B2B Direct Connect, and not all features are supported across both organizations.
Slack's API uses an event-driven, webhook-based design — external systems respond to activity in Slack in real time, without constant polling. That architecture makes integrations faster to build, easier to maintain, and more efficient to run. Teams connects through the Microsoft Graph API, a unified permission model that spans email, calendar, SharePoint, and other Microsoft services. That breadth is valuable within the Microsoft ecosystem, but it also means permissions granted to any integration cover a wide surface area. It's something security teams should factor into their third-party app governance and vendor evaluation process.
Yes — and we think being transparent about it builds trust. Teams has deep calendaring capabilities with Microsoft Outlook and can make email based work much easier. Its full video conferencing suite — including breakout rooms and in-meeting transcription — is also more feature-rich than Slack Huddles for organizations that rely heavily on structured video meetings. If email, meetings and calendar are your highest-priority requirements, they're genuine strengths worth factoring into your evaluation alongside everything else on this page.
When evaluating Slack vs Teams pricing, it's important to note that as of November 1, 2025, Microsoft Teams is now a separate purchase from Office 365/Microsoft 365 suites, with Teams pricing starting at $8.55 per user per month for Microsoft Teams Enterprise/Microsoft Teams EEA.
Unlike bundled solutions, Slack offers transparent, straightforward pricing that allows organizations to choose the collaboration tools that best fit their specific needs. See our pricing plans or contact sales for more details.
1 2025 Salesforce Success Metrics Global Highlights. Data is aggregated from 1,754 customers across 10 countries.
2 Based on an internal analysis during the pilot of Slack AI features (channel recaps, thread summaries, and AI search answers)
3 FY25 Slack internal data, product usage analysis.
4 "The Total Economic Impact™ of Slack for Sales Teams," a commissioned study conducted by Forrester Consulting on behalf of Slack, November 2023
5 G2 Slack Reviews & Product Details Nov. 2025
6 G2 Microsoft Teams Reviews & Product Details Nov. 2025