comparison

Slack vs Microsoft Teams: Complete Comparison (2026)

A comparison of Slack and Microsoft Teams for workplace automation in 2026. Slack Workflow Builder provides no-code automation with 2,600+ app integrations at $8.75/user/month. Teams integrates with Power Automate for 1,000+ connectors and desktop RPA. Pricing analysis for 50-person organizations included.

The Bottom Line: Choose Slack for diverse SaaS environments with no-code automation. Choose Microsoft Teams for Microsoft 365-centric organizations needing Power Automate and RPA.

Overview

Slack and Microsoft Teams are the two dominant workplace communication platforms. Slack, acquired by Salesforce in 2021 for $27.7 billion, is used by over 750,000 organizations worldwide as of April 2026. Microsoft Teams, bundled with Microsoft 365, reported 320 million monthly active users as of 2024. Both platforms include built-in automation features, but through different architectures: Slack uses Workflow Builder for no-code automation, while Teams integrates with Power Automate for a broader automation engine.

Feature Comparison

Capability Slack Microsoft Teams
Monthly active users 750K+ organizations 320M+ users (2024)
Automation engine Workflow Builder (no-code) Power Automate integration
App marketplace 2,600+ apps 1,800+ apps + Power Automate connectors
RPA capability No Desktop flows via Power Automate
AI features Slack AI (search, summarize, digest) Copilot (summarize, draft, analyze)
File storage 5 GB (Free), 10 GB/member (Pro) 1 TB/org + 10 GB/user (M365 Business)
Pricing Free; Pro $8.75/user/month Included with M365 ($6-22/user/month)
Standalone availability Yes Yes (free tier available)
Huddles/audio Built-in Built-in
Video meetings Basic (1:1) Full video conferencing

Automation Capabilities

Slack Workflow Builder enables no-code workflows triggered by channel messages, emoji reactions, form submissions, scheduled times, or webhook calls. Workflow steps include sending messages, creating channels, collecting form data, calling external APIs, and updating variables. Workflows execute within Slack and connect to external services via connector steps. Pro plan ($8.75/user/month) includes Workflow Builder.

Microsoft Teams automation works through Power Automate, which provides 1,000+ connectors to Microsoft and third-party services. Flows can be triggered from Teams messages, adaptive cards, and bot commands. Power Automate adds capabilities unavailable in Slack: desktop RPA (robotic process automation), AI Builder for document processing, and process mining. A Power Automate per-user license costs $15/user/month on top of the Microsoft 365 subscription.

Pricing Comparison (50-Person Organization)

Component Slack Microsoft Teams
Communication platform Pro $8.75 x 50 = $437.50/month M365 Business Basic $6 x 50 = $300/month
Automation Included in Pro Power Automate $15 x 50 = $750/month
AI assistant Slack AI (included in Business+) Copilot $30 x 50 = $1,500/month
Total (communication + automation) $437.50/month $1,050/month

Slack Pro with Workflow Builder is 58% cheaper than Teams + Power Automate for communication and automation. However, M365 Business Basic includes email, OneDrive, and SharePoint; Slack requires separate tools for these functions.

App Ecosystem

Slack's 2,600+ app directory includes native integrations with Salesforce (owner), Google Workspace, Jira, Asana, GitHub, PagerDuty, and Datadog. The Slack API supports message actions, slash commands, event subscriptions, and interactive modals.

Teams' 1,800+ app directory includes deep Microsoft integrations (SharePoint, OneDrive, Planner, Power BI) and third-party connectors via Power Automate. The Teams API supports bots, messaging extensions, tabs, and adaptive cards.

When to Choose Slack

  • Organizations using diverse SaaS tools (Salesforce, Google Workspace, AWS)
  • Teams prioritizing no-code workflow automation with minimal setup
  • Companies wanting the broadest third-party app integrations
  • Startups and tech companies where Slack is the cultural default

When to Choose Microsoft Teams

  • Organizations already using Microsoft 365 (email, OneDrive, SharePoint)
  • Companies needing Power Automate for desktop RPA and document processing
  • Enterprises requiring compliance features (DLP, eDiscovery, retention policies)
  • Organizations where video conferencing is a primary communication channel

Editor's Note: We compared both for a 40-person company using Salesforce, Asana, and Google Workspace. Slack Pro ($350/month) integrated with all three natively. Automating standup collection, PTO requests, and new-hire onboarding took 2 hours in Workflow Builder. Replicating the same in Teams required Power Automate, adding $600/month and 4 hours of setup. For a Microsoft-native company (Exchange, SharePoint, OneDrive), Teams is the natural choice with Power Automate providing enterprise automation. For mixed-ecosystem companies, Slack's broader native integrations reduce the need for middleware.

Written & reviewed by Rafal Fila · Last updated:

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Common Questions

Can you automate a platform with no API using Zapier?

Not as a proper Zapier app. Zapier's help centre, updated 29 May 2026, says a private app can be built "for any service with a public API", and its fallbacks for a missing app are email parsing, RSS, webhooks, asking Zapier to add the app, or using a different app. Those let a no-API platform tell a Zap that something happened; none of them lets a Zap act inside the platform. The Zapier Agents Chrome extension can "run actions" on a page open in your own browser (help article updated 27 April 2026), but that is hands-on help, not a reusable Zap step.

How does Moxo keep humans in control when AI agents run a workflow?

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How much does Moxo cost in 2026?

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What is Moxo?

Moxo AI (app.moxo.com) is a process orchestration platform from Moxo, formerly Moxtra, for work where several parties, approvals and documents meet. You build templates of human steps, AI steps and automations, each run is a Flow with its own data and status, and outsiders act through account-free Magic Links. Its only published price is Team, and the AI agents start on the custom-quoted Scale plan (moxo.com/pricing, 15 September 2026). It is not Moxo Classic, the older app.