Slack vs Microsoft Teams: Which is Better in 2025?

Slack vs Microsoft Teams: Which Is Better in 2025? 

In 2025, remote and hybrid work is the new normal—and choosing the right collaboration tool can make or break your team’s productivity. Today, we're comparing Slack and Microsoft Teams—side by side—so you can decide which fits your unique needs.

1. User Experience & Interface

Slack: Known for its clean, intuitive, and highly customizable interface. It’s easy for teams to adopt and personalize with themes, sidebar tweaks, and flexible navigation. 

Teams: Offers a structured, polished interface familiar to Microsoft users. It’s streamlined, though some may find it rigid or overwhelming initially. 

Verdict: Slack wins for ease of use; Teams may suit users already within the Microsoft ecosystem.

2. Messaging & Threading

Slack: Sets the bar with true threaded conversations—keeping discussions neat and context intact. 

Teams: Has just introduced threaded messaging in 2025, still in public preview. Though a welcome addition, setup is less fluid than Slack’s. 

Verdict: Slack leads, but Teams is catching up.

3. Integrations & App Ecosystem

Slack: Boasts an enormous app marketplace with over 2,400–2,600 integrations—including Salesforce, Zoom, Trello, and more. 

Teams: Seamless with Microsoft 365 tools (Word, Excel, SharePoint, Dynamics 365), though it offers fewer third-party options. 

Verdict: Slack for flexibility and diversity; Teams for deep Microsoft productivity integration.

4. Video Conferencing & Meetings

Slack: Provides quick, lightweight "Huddles" for impromptu audio/video chats. For advanced meetings, you’d need third-party tools. 

Teams: Packs a robust meeting suite—transcriptions, AI summaries, town hall DVR features—making it ideal for structured, large-scale video collaboration. 

Verdict: Teams holds the edge for formal, feature-rich meetings.

5. AI & Productivity Features

Slack: Offers AI tools like Slack AI for summaries, recaps, and smart search—especially effective for messaging-centric workflows. 

Teams: Comes with Microsoft's Copilot, delivering powerful AI that taps into your entire 365 ecosystem—across documents, calendars, and chats. 

Verdict: Teams has more comprehensive, ecosystem-wide AI capabilities; Slack is strong for in-app messaging enhancements.

6. Security & Compliance

Slack: Data encryption, two-factor authentication, and Enterprise Key Management (EKM) are available on higher tier plans. 

Teams: Leverages Microsoft’s enterprise-grade security suite—GDPR, HIPAA, SOC 2 compliance, DLP, and deep admin controls. 

Verdict: Teams is best for strict enterprise requirements; Slack offers strong options for SMBs.

7. Pricing & Value

Slack: Freemium model; paid plans start around $7–8 per user/month. Great value for small teams needing flexibility. 

Teams: Includes free tier; standalone Essentials starts around $4/month. Better value when bundled with Microsoft 365. 

Verdict: Teams is cost-effective for organizations already in the Microsoft ecosystem; Slack works best for standalone startups.

8. User Sentiment

TechRadar report (April 2025): Slack emerged the clear winner in UI, integrations, search, and pricing for remote teams. 

Reddit opinion: A longtime user vented frustrations about Teams’ sluggish performance compared to Slack.