products
Slack vs Zoom: Features, Pricing & Comparison 2026
Slack specializes in asynchronous team messaging and workflow automation, while Zoom excels in live video conferencing and webinars. Most organizations use both platforms complementarily—Slack for ongoing communication and Zoom for synchronous meetings.
S
Slack
Cloud-based team messaging platform with 750,000+ active workspaces
Distributed teams, remote-first companies, organizations prioritizing async communication and workflow automation
Score71%
VS
Z
Zoom
Cloud-based video conferencing platform optimized for meetings and webinars
Organizations requiring frequent video conferences, webinars, customer calls, and those seeking advanced AI-powered meeting intelligence
Score71%
Quick Answer
AI SummarySlack specializes in asynchronous team messaging and workflow automation, while Zoom excels in live video conferencing and webinars. Most organizations use both platforms complementarily—Slack for ongoing communication and Zoom for synchronous meetings.
Our Verdict
AI-assistedSlack and Zoom serve different but complementary purposes in modern workplaces. Slack dominates asynchronous communication with superior pricing stability and workflow automation, while Zoom leads in synchronous meetings with advanced AI features and large-scale webinar capacity. Most organizations maximize productivity by using both platforms together.
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S
Slack
9.2/10
Zoom
5.8/10
Z
S
Choose Slack if
Best pickDistributed teams, remote-first companies, organizations prioritizing async communication and workflow automation
Z
Choose Zoom if
Organizations requiring frequent video conferences, webinars, customer calls, and those seeking advanced AI-powered meeting intelligence
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Key Differences at a Glance
- Primary Function:Asynchronous messaging and collaboration vs Live video conferencing and meetings
- Best For Communication Type:Written async communication, threads, workflows vs Real-time video, audio, screen sharing
- Starting Price (2026):$0 (Free tier available) vs $0 (Basic tier available)
Key Facts & Figures
131 numeric metrics compared
| Metric | Slack | Zoom | Ratio |
|---|---|---|---|
| Daily Active Users(millions) | ~38 Million | 300 million | |
| App Integrations(count) | 2,600+ | — | — |
| Paid Starting Price(USD/user/mo) | $7.25 | — | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $7.25 | — | — |
| Annual Cost per User (Pro Tier)(USD) | $87 (billed yearly) | — | — |
| Third-Party App Integrations(integrations) | 2,400+ | — | — |
| Video Meeting Capacity(participants) | Up to 2,000 (with paid plan) | — | — |
| Mobile App Feature Parity(%) | 95% | — | — |
| Monthly Cost per 20-Person Team(USD) | $3,600 (Pro plan at $15/user) | — | — |
| Global Market Share(%) | 65% | — | — |
| Free Trial Duration(days) | 7 days | — | — |
| Daily Active Users Worldwide(millions) | 20+ million | — | — |
| Message History Retention on Free Plan(count) | 10,000 most recent | — | — |
| Base Monthly Cost Per User(USD) | $8.25 (Pro plan, min 3 users) | — | — |
| Free Tier Meeting Participant Limit(participants) | Unlimited (Slack Huddles for video limited to 50 participants) | — | — |
| Asynchronous Communication Strength(scale 1-5) | 5 out of 5 (core feature with channels, threads, and history) | — | — |
| Google Workspace Integration Level | 2 out of 5 (available via integration, not native) | — | — |
| AI Features Count (2026)(features) | 30+ (CRM tools, meeting summaries, automation, SlackBot enhancements) | — | — |
| Base Monthly Cost Per User(USD) | $7.25 | — | — |
| Business+ Tier Monthly Cost Per User(USD) | $12.50 | — | — |
| Available Integrations(integrations) | 2000+ | — | — |
| Price Stability (2024-2026)(months) | No increases for 33 months | — | — |
| Free Tier Cost(USD) | Free | Free Basic plan | |
| Pro/Standard Monthly Cost(USD per user/month) | $7.25 | $14-$29 | |
| Maximum Meeting Participants(participants) | Unlimited group chats | 500+ (Professional tier) | — |
| Third-party Integrations(integrations) | 2000+ | 1000+ | |
| Zoom Rooms Cost(USD per room/month) | N/A | $41.58 | — |
| Minimum Monthly Cost Per User(USD) | $7.25 | — | — |
| Third-Party Integrations Available(count) | 2,000+ | — | — |
| Years Price Stable (2026)(months) | 33+ months | — | — |
| Native Integrations Available(count) | 2200+ | — | — |
| Pro Plan Annual Cost(USD) | $150 (billed monthly) | $191.88/year | |
| Free Tier Message History Retention(days) | 90 days | — | — |
| AI Transcription Languages Supported(languages) | 0 (not native feature) | — | — |
| Enterprise Uptime SLA(percent) | 99.99% | — | — |
| User Workspace Limit (Free Tier)(workspaces) | 1 workspace | — | — |
| Maximum Meeting Participants (Free)(participants) | 3 participants | — | — |
| Pro Plan Monthly Cost (Annual Billing)(USD per user) | $8.75 | — | — |
| Available Integrations(count) | 2,400+ | — | — |
| Monthly Cost (Pro Plan)(USD) | $12.50 per user/month | — | — |
| Free Message History(days) | 90 days maximum | — | — |
| Voice Audio Codec Quality(kHz) | 16 kHz | — | — |
| Third-Party Integrations(count) | 2000+ integrations | — | — |
| Maximum Video Call Participants(people) | 15 participants | — | — |
| Total Registered Users(millions) | 750 million | — | — |
| Enterprise Plan Monthly Cost Per User(USD) | $12.50 | — | — |
| Free Plan Message History Retention(days) | 90 days | — | — |
| Third-Party Integrations Available(count) | 2,300+ integrations | 1,500+ | |
| Paid Plan Starting Price(USD/user/month) | $7.25 | — | — |
| Cloud Storage (Base Plan)(GB) | 10 GB | — | — |
| Monthly Cost Per User(USD) | $8-12.50 (Pro/Business+) | — | — |
| Active Workspaces(workspaces) | 750,000+ | — | — |
| Native Integrations(count) | 2,300+ | — | — |
| Message History Searchable(years) | 10 years standard | — | — |
| Workflow Automation Steps(built-in steps) | 50+ | — | — |
| Native App Integrations Available(count) | 2,400+ apps | — | — |
| Monthly Cost (Pro Plan, 50 users)(USD) | $412.50/month | — | — |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | — | — |
| Monthly Cost (10 Users, Annual)(USD) | $150/month ($1,800/year) | — | — |
| Pre-built Integrations(count) | 2,400+ integrations | — | — |
| Message History on Free Plan(days) | 90-day limited access | — | — |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | — | — |
| Uptime SLA Guarantee(percent) | 99.99% | — | — |
| Price Per User Per Month (Pro/Standard)(USD) | $12.50/user (Pro plan) | — | — |
| Base Monthly Cost (10-person team)(USD) | $80-150 | — | — |
| Cost for 50-person team(USD/month) | $400-750 | — | — |
| Real-time Messaging Speed(ms (message delivery latency)) | 50-100ms (instant) | — | — |
| File Storage Included(GB) | 5GB (Free), varies by plan | — | — |
| Setup Time for New Team(hours) | 0.5-1 hour | — | — |
| Max Video Conference Participants(people) | 1000 | — | — |
| Message History (Free Plan)(days) | 90 | — | — |
| Voice Codec Quality Rating(score (1-10)) | 7.5 | — | — |
| Enterprise Security Certifications | SOC 2, HIPAA, FedRAMP, GDPR | — | — |
| Time to Deploy(hours) | 3-7 | — | — |
| Uptime Guarantee(percent) | 99.99% | — | — |
| Pro Plan Monthly Cost(USD) | $8.75 | $19.99/month | |
| Video Conference Max Participants(participants) | 150 | — | — |
| Free Tier File Storage(GB per user) | 1 GB shared workspace | — | — |
| Message Search History (Free Tier)(days) | 90 days | — | — |
| Annual Subscription Cost (Pro, 100 users)(USD) | $10,500 | — | — |
| Desktop App Memory Usage(MB) | 280 MB | — | — |
| Monthly subscription cost (Pro plan)(USD per user) | $12.50 | — | — |
| Native third-party integrations(count) | 100+ | — | — |
| Message Search Response Time(seconds) | 2-4 seconds | — | — |
| User interface satisfaction rating(out of 10) | 9.2/10 | — | — |
| Maximum video call participants (free tier)(people) | 100 participants | — | — |
| Service uptime SLA guarantee(percent) | 99.99% | — | — |
| Message history retention (free plan)(days) | 90 days searchable | — | — |
| Enterprise app marketplace size(applications) | 2,000+ apps (Slack App Directory) | — | — |
| Team Size Cost Efficiency Threshold(team members) | Cost-effective until ~12 users | — | — |
| Message History Searchability(months) | 90 days (Free/Pro), unlimited with Enterprise | — | — |
| Average User Adoption Time(days) | 1-3 days | — | — |
| Global Active Users(millions) | 750+ million messages daily across 750k+ organizations | — | — |
| Monthly Subscription Cost (Pro/Standard)(USD) | $8.25 | — | — |
| Message Delivery Latency(milliseconds) | <100ms | — | — |
| File Upload Limit(GB) | 20GB | — | — |
| Message History Retention (Free Tier)(days) | 90 days | — | — |
| G2 Ease of Use Rating (2024)(stars) | 4.5/5 | — | — |
| Video Meeting Participant Limit(participants) | 2000 | — | — |
| Pro Plan Monthly Cost Per User(USD) | $12.50 | — | — |
| File Storage Per User(GB) | 100 (workspace) | — | — |
| Free Group Video Call Duration Limit(minutes) | 40 | — | — |
| Maximum Video Conference Participants (Free)(people) | Limited (typically 3-4) | — | — |
| G2 User Interface Rating(out of 5) | 4.6/5 (12,400 reviews) | — | — |
| Maximum Free Participants(participants) | 300 participants | 300 participants | |
| Built-in AI Features | 5+ (Companion, Summaries, Previews, Smart Compose) | 5+ (Companion, Summaries, Previews, Smart Compose) | |
| Engagement Tools Available(count) | 6+ (polls, Q&A, reactions, hand raising, breakout rooms, live transcription) | 6+ (polls, Q&A, reactions, hand raising, breakout rooms, live transcription) | |
| Update Frequency (2026)(releases per month) | 2-3 per month | 2-3 per month | |
| Free Plan Monthly Cost(USD) | $0 | $0 | |
| Pro/Standard Plan Monthly Cost(USD/user) | $13.33 | $13.33 | |
| Pro Plan Participant Limit(participants) | 300+ | 300+ | |
| Cloud Storage Included(GB) | Limited (varies by plan) | Limited (varies by plan) | |
| Setup Time (Minutes)(minutes) | 5-10 | 5-10 | |
| Basic Plan Monthly Cost(USD) | $15/month | $15/month | |
| Free Plan Group Meeting Duration(minutes) | 40 minutes | 40 minutes | |
| Free Plan Participant Limit(participants) | 100 participants | 100 participants | |
| Gartner Review Rating(stars) | 4.5 stars (6,286 reviews) | 4.5 stars (6,286 reviews) | |
| Maximum Live Participants(participants) | 300 (Pro+) | 300 (Pro+) | |
| Webinar Capacity(attendees) | 1000+ (webinar feature) | 1000+ (webinar feature) | |
| Starting Monthly Price per User(USD) | $14.16 | $14.16 | |
| Free Meeting Duration (3+ participants)(minutes) | 40 minutes | 40 minutes | |
| Real-Time Translation Languages(count) | 40+ languages (2026) | 40+ languages (2026) | |
| Enterprise Deployment Adoption (500+ seat orgs)(percentage) | 33% of deployments | 33% of deployments | |
| 3-Year TCO Advantage for 1,000 Users with M365(percentage savings) | Baseline (higher cost) | Baseline (higher cost) | |
| Starting Price(USD) | $0 (Free) | $0 (Free) | |
| User Review Rating(stars) | 4.6 | 4.6 | |
| Group Video Call Duration Limit (Free)(minutes) | 40 minutes | 40 minutes | |
| Max Participants (Free Plan)(people) | Up to 100 (time-limited to 40 minutes) | Up to 100 (time-limited to 40 minutes) | |
| Free Plan Monthly Cloud Storage(GB) | 1 GB | 1 GB | |
| Average Setup Time for New Recording/Meeting(minutes) | 7 minutes | 7 minutes | |
| Max Participants (Paid Plan)(people) | 300 | 300 |
Sourced from publicly available data ·
Key Differences
8 attributes compared head-to-head
S
3SlackSlack leads3 ties
Z
2ZoomSlack
Attribute
Zoom
- Asynchronous messaging and collaborationPrimary FunctionLive video conferencing and meetings
- Written async communication, threads, workflowsBest For Communication TypeReal-time video, audio, screen sharing
- $0 (Free tier available)Starting Price (2026)$0 (Basic tier available)
- $7.25/user/month(winner)Pro Plan Cost$14-$29/user/month
- AI workflow automation, search enhancementAI CapabilitiesAI Companion 3.0, real-time translation, agentic AI(winner)
- 1-on-1 and group chats (unlimited users)Meeting Capacity (Standard)Up to 300+ participants per meeting(winner)
- No price increases, stable at $7.25(winner)Price History (33 months)Incremental increases and plan adjustments
- 2000+ apps and workflow automation(winner)Integration Ecosystem1000+ integrations, expanding platform
- Primary Function
Slack
Asynchronous messaging and collaboration
Zoom
Live video conferencing and meetings
- Best For Communication Type
Slack
Written async communication, threads, workflows
Zoom
Real-time video, audio, screen sharing
- Starting Price (2026)
Slack
$0 (Free tier available)
Zoom
$0 (Basic tier available)
- Pro Plan Cost
Slack
$7.25/user/month(winner)
Zoom
$14-$29/user/month
- AI Capabilities
Slack
AI workflow automation, search enhancement
Zoom
AI Companion 3.0, real-time translation, agentic AI(winner)
- Meeting Capacity (Standard)
Slack
1-on-1 and group chats (unlimited users)
Zoom
Up to 300+ participants per meeting(winner)
- Price History (33 months)
Slack
No price increases, stable at $7.25(winner)
Zoom
Incremental increases and plan adjustments
- Integration Ecosystem
Slack
2000+ apps and workflow automation(winner)
Zoom
1000+ integrations, expanding platform
Full Comparison
| Attribute | Slack | Zoom |
|---|---|---|
| Daily Active Users(millions) | ~38 Million | 300 million(winner) |
| App Integrations(count) | 2,600+ | — |
| Google Workspace Native Integration | Limited (requires custom setup) | — |
| Native third-party integrations(count) | 100+ | — |
| Native Microsoft 365 Integration(integration level) | API-based (basic) | — |
| Google Workspace Integration | Third-party plugin required | — |
Show 2 more attributesNative Google Workspace Integration Basic — Cisco Hardware Integration(compatibility) Third-party compatible — | ||
| Paid Starting Price(USD/user/mo) | $7.25 | — |
| Standalone Monthly Pricing (Pro Tier)(USD per user per month) | $7.25 | — |
| Annual Cost per User (Pro Tier)(USD) | $87 (billed yearly) | — |
| Monthly Cost per 20-Person Team(USD) | $3,600 (Pro plan at $15/user) | — |
| Free Trial Duration(days) | 7 days | — |
| Base Monthly Cost Per User(USD) | $8.25 (Pro plan, min 3 users) | — |
Show 30 more attributesBase Monthly Cost Per User(USD) $7.25 — Business+ Tier Monthly Cost Per User(USD) $12.50 — Price Stability (2024-2026)(months) No increases for 33 months — Free Tier Cost(USD) Free Free Basic plan Pro/Standard Monthly Cost(USD per user/month) $7.25 $14-$29 Minimum Monthly Cost Per User(USD) $7.25 — Years Price Stable (2026)(months) 33+ months — Pro Plan Annual Cost(USD) $150 (billed monthly) $191.88/year Pro Plan Monthly Cost (Annual Billing)(USD per user) $8.75 — Monthly Cost (Pro Plan)(USD) $12.50 per user/month — Enterprise Plan Monthly Cost Per User(USD) $12.50 — Paid Plan Starting Price(USD/user/month) $7.25 — Monthly Cost Per User(USD) $8-12.50 (Pro/Business+) — Monthly Cost (Pro Plan, 50 users)(USD) $412.50/month — Monthly Cost (10 Users, Annual)(USD) $150/month ($1,800/year) — Price Per User Per Month (Pro/Standard)(USD) $12.50/user (Pro plan) — Base Monthly Cost (10-person team)(USD) $80-150 — Cost for 50-person team(USD/month) $400-750 — Pro Plan Monthly Cost(USD) $8.75 $19.99/month Annual Subscription Cost (Pro, 100 users)(USD) $10,500 — Monthly subscription cost (Pro plan)(USD per user) $12.50 — Team Size Cost Efficiency Threshold(team members) Cost-effective until ~12 users — Monthly Subscription Cost (Pro/Standard)(USD) $8.25 — Pro Plan Monthly Cost Per User(USD) $12.50 — Free Plan Monthly Cost(USD) $0 — Pro/Standard Plan Monthly Cost(USD/user) $13.33 — Basic Plan Monthly Cost(USD) $15/month — Starting Monthly Price per User(USD) $14.16 — Mid-Tier Price(USD/month) $14-$29 — Paid Plan Cost (Single User/Month)(USD) Pro plan $14-29 — | ||
| Third-Party App Integrations(integrations) | 2,400+ | — |
| Available Integrations(integrations) | 2000+ | — |
| Video Meeting Capacity(participants) | Up to 2,000 (with paid plan) | — |
| Native Office Integration | Limited (third-party connectors) | — |
| AI Copilot Features | Slack AI (summarization, search, assisted writing) | — |
| Message History Retention on Free Plan(count) | 10,000 most recent | — |
| Free Tier Meeting Participant Limit(participants) | Unlimited (Slack Huddles for video limited to 50 participants) | — |
Show 41 more attributesNative Video Conferencing Huddles for brief video, limited to 50 participants; requires external tool for full conferencing — Meeting Recording & Auto-Transcription Not native; requires integration with Otter.ai or similar third-party services — Asynchronous Communication Strength(scale 1-5) 5 out of 5 (core feature with channels, threads, and history) — Third-Party Integrations Available(count) 2,000+ — Enterprise AI Features Advanced AI assistant, smart summaries, automation — Available Integrations(count) 2,400+ — Free Message History(days) 90 days maximum — Free Plan Message History Retention(days) 90 days — Free Plan External Guest Collaboration(capacity) Unlimited external guests via workspace invite — Email Service Included No — Native Integrations(count) 2,300+ — Message History Searchable(years) 10 years standard — Workflow Automation Steps(built-in steps) 50+ — Message History on Free Plan(days) 90-day limited access — Message History Retention(status) 10,000 messages (free); unlimited (paid) — Built-in Project Management(status) No (requires integrations) — Max Video Conference Participants(people) 1000 — Message History (Free Plan)(days) 90 — Video Conference Max Participants(participants) 150 — Message Search History (Free Tier)(days) 90 days — Message Search Speed (Free Tier)(indexing scope) All messages indexed instantly — Message History Retention (Free Tier)(days) 90 days — Video Meeting Participant Limit(participants) 2000 — Maximum Free Participants(participants) 300 participants — Built-in AI Features 5+ (Companion, Summaries, Previews, Smart Compose) — Engagement Tools Available(count) 6+ (polls, Q&A, reactions, hand raising, breakout rooms, live transcription) — Meeting Recording Storage (Free Plan)(hours) 1GB cloud storage — Virtual Background Library(quality level) Extensive HD with filters — Pro Plan Participant Limit(participants) 300+ — Free Plan Group Meeting Duration(minutes) 40 minutes — Free Plan Participant Limit(participants) 100 participants — Integrated Calling Plans(included) Separate add-on service — Advanced Meeting Analytics(included) Basic analytics — Interactive Video Elements Basic editing, transcription — Free Meeting Duration (3+ participants)(minutes) 40 minutes — Real-Time Translation Languages(count) 40+ languages (2026) — Group Video Call Duration Limit (Free)(minutes) 40 minutes — Real-Time Translation Support(Languages) 95+ languages (2026) — Message History Retention(text) Not applicable (meeting-focused) — AI Assistant Capabilities(text) AI Companion 3.0 with agentic AI — AI Transcription Support (Standard Tier)(hours/month) 40 hours/month (Zoom One plan) — | ||
| Message Search Speed(seconds) | Excellent - optimized search indexing | — |
| Voice Audio Codec Quality(kHz) | 16 kHz | — |
| Maximum Video Call Participants(people) | 15 participants | — |
| Real-time Messaging Speed(ms (message delivery latency)) | 50-100ms (instant) | — |
| Desktop App Memory Usage(MB) | 280 MB | — |
Show 3 more attributesMessage Search Response Time(seconds) 2-4 seconds — Message Delivery Latency(milliseconds) <100ms — Video Quality (Free Plan)(resolution) HD (720p) — | ||
| Mobile App Feature Parity(%) | 95% | — |
| Mobile App Type | Native iOS/Android with feature-parity | — |
| Global Market Share(%) | 65% | — |
| Daily Active Users Worldwide(millions) | 20+ million | — |
| Self-Hosting Available(boolean) | No | — |
| Self-Hosting Capability | No, cloud-only | — |
| Self-Hosted/On-Premises Option | No (cloud-only) | — |
| Google Workspace Integration Level | 2 out of 5 (available via integration, not native) | — |
| AI Features Count (2026)(features) | 30+ (CRM tools, meeting summaries, automation, SlackBot enhancements) | — |
| Deployment Options | Cloud-based SaaS only | — |
| GDPR & Data Sovereignty Compliance | Compliant but data on Salesforce servers | — |
| End-to-End Encryption Available | DMs only, Enterprise+ plan | — |
| End-to-End Encryption Default | Not available | — |
| Enterprise Security Certifications | SOC 2, HIPAA, FedRAMP, GDPR | — |
| Security Certifications(compliance level) | SOC 2, HIPAA, FedRAMP | — |
Show 2 more attributesEnterprise Security Certifications SOC 2, HIPAA, FedRAMP, ISO 27001 — SOC 2 Compliance(text) Yes, SOC 2 Type II — | ||
| Maximum Meeting Participants(participants) | Unlimited group chats | 500+ (Professional tier) |
| Built-in Task Management(features) | No: messaging-only, requires integrations | — |
| Message History Searchability(months) | 90 days (Free/Pro), unlimited with Enterprise | — |
| Third-party Integrations(integrations) | 2000+(winner) | 1000+ |
| Native Integrations Available(count) | 2200+ | — |
| Third-Party Integrations(count) | 2000+ integrations | — |
| Pre-built Integrations(count) | 2,400+ integrations | — |
| AI Features (2026) | Workflow automation, search enhancement | AI Companion 3.0, real-time translation, agentic AI |
| Real-Time Translation | Not available | Available (AI Companion 3.0) |
| Asynchronous Communication | Optimized with threads and archives | Secondary with Zoom Chat |
| Zoom Rooms Cost(USD per room/month) | N/A | $41.58 |
| AI Assistant Capability | Slack AI (optional on paid plans) | — |
| AI Transcription Languages Supported(languages) | 0 (not native feature) | — |
| AI Meeting Assistant | Slack AI (search, summarization, drafting) | Yes (AI Companion) |
| Workflow Automation Complexity | Advanced with conditional logic | — |
| Storage Per User (Standard Plan)(GB) | Variable by plan | — |
| Cloud Storage (Base Plan)(GB) | 10 GB | — |
| File Storage Included(GB) | 5GB (Free), varies by plan | — |
| Free Tier File Storage(GB per user) | 1 GB shared workspace | — |
| Message history retention (free plan)(days) | 90 days searchable | — |
Show 3 more attributesFile Upload Limit(GB) 20GB — File Storage Per User(GB) 100 (workspace) — Free Plan Monthly Cloud Storage(GB) 1 GB — | ||
| Open Source | No, proprietary | — |
| Maximum Video Length (Free Tier)(minutes) | N/A | — |
| Maximum Video Resolution(pixels) | Requires 3rd party | — |
| Maximum Screen Recording Resolution(pixels) | 1080p at 60fps | — |
| Maximum Video Sharing Quality(fps at resolution) | 60fps at 1080p | — |
| Maximum Video Resolution (Free Plan)(pixels) | 720p | — |
| Free Tier Message History Retention(days) | 90 days | — |
| Enterprise Uptime SLA(percent) | 99.99% | — |
| Uptime SLA Guarantee(percent) | 99.99% | — |
| Uptime Guarantee(percent) | 99.99% | — |
| Service uptime SLA guarantee(percent) | 99.99% | — |
| User Workspace Limit (Free Tier)(workspaces) | 1 workspace | — |
| Maximum Meeting Participants (Free)(participants) | 3 participants | — |
| Maximum Meeting Participants (Paid)(participants) | Unlimited (slide deck view only) | — |
| Free Plan Message History(months) | 90 days | — |
| FedRAMP Authorization(boolean) | No | — |
| HIPAA Compliance Certified | Yes (Business+ plan required) | — |
| SOC 2 Type II Certified | Yes | — |
| Custom Workflow Automation | Advanced (Workflow Builder, automations) | — |
| Users Per Workspace(count) | Unlimited | — |
| Total Registered Users(millions) | 750 million | — |
| Third-Party Integrations Available(count) | 2,300+ integrations(winner) | 1,500+ |
| Native App Integrations Available(count) | 2,400+ apps | — |
| Daily Posts Published (Organic)(millions) | N/A | — |
| Active Workspaces(workspaces) | 750,000+ | — |
| Global Active Users(millions) | 750+ million messages daily across 750k+ organizations | — |
| Threading Model | Channel-based threads (contextual loss in active channels) | — |
| Open Source | Proprietary (closed-source) | — |
| Native Video/Audio Calls | Yes (Slack Huddles) | — |
| Paid Workspaces/Users (Enterprise Adoption)(workspaces) | 750,000+ paid workspaces | — |
| Active Global Workspaces/Deployments(count) | 750,000+ active workspaces | — |
| Source Code Availability | Proprietary/closed | — |
| Setup Time for New Team(hours) | 0.5-1 hour | — |
| Setup Complexity | Moderately complex | — |
| Average Setup Time for New Recording/Meeting(minutes) | 7 minutes | — |
| Voice Codec Quality Rating(score (1-10)) | 7.5 | — |
| Time to Deploy(hours) | 3-7 | — |
| Learning Curve(hours to proficiency) | 2 | — |
| Monthly Active Users(users) | 0.75 million | — |
| User interface satisfaction rating(out of 10) | 9.2/10 | — |
| Average User Adoption Time(days) | 1-3 days | — |
| G2 Ease of Use Rating (2024)(stars) | 4.5/5 | — |
| G2 User Interface Rating(out of 5) | 4.6/5 (12,400 reviews) | — |
| Maximum video call participants (free tier)(people) | 100 participants | — |
| Free Group Video Call Duration Limit(minutes) | 40 | — |
| Maximum Video Conference Participants (Free)(people) | Limited (typically 3-4) | — |
| Enterprise app marketplace size(applications) | 2,000+ apps (Slack App Directory) | — |
| Message Search Capability(text) | Full-text indexed across all messages | — |
| Chat Message Formatting Options(capabilities) | Rich formatting, code blocks, file sharing, emoji reactions | — |
| Meeting Type | Synchronous (real-time) | — |
| Mobile App Support(text) | iOS, Android, full feature parity | — |
| Update Frequency (2026)(releases per month) | 2-3 per month | — |
| Cloud Storage Included(GB) | Limited (varies by plan) | — |
| Setup Time (Minutes)(minutes) | 5-10 | — |
| Gartner Review Rating(stars) | 4.5 stars (6,286 reviews) | — |
| Maximum Live Participants(participants) | 300 (Pro+) | — |
| Webinar Capacity(attendees) | 1000+ (webinar feature) | — |
| Max Participants (Free Plan)(people) | Up to 100 (time-limited to 40 minutes) | — |
| Max Participants (Paid Plan)(people) | 300 | — |
| Free Plan Recording Limit(recordings) | 40 minutes (3+ participants) | — |
| AI Features Available (2026) | AI Companion 3.0, real-time translation, auto bug reporting | — |
| Setup Time Required(hours) | Schedule meeting in advance | — |
| AI Features in Base Tier | Yes (AI Companion 3.0) | — |
| Enterprise Deployment Adoption (500+ seat orgs)(percentage) | 33% of deployments | — |
| 3-Year TCO Advantage for 1,000 Users with M365(percentage savings) | Baseline (higher cost) | — |
| Starting Price(USD) | $0 (Free) | — |
| User Review Rating(stars) | 4.6 | — |
| AI Features(count) | AI Companion 3.0, agentic AI | — |
| Meeting Participant Limit(Users) | Unlimited | — |
SSlack
ZZoom
Daily Active Users(millions)
~38 Million
300 million
App Integrations(count)
2,600+
—
Google Workspace Native Integration
Limited (requires custom setup)
—
Native third-party integrations(count)
100+
—
Native Microsoft 365 Integration(integration level)
API-based (basic)
—
Google Workspace Integration
Third-party plugin required
—
Show 2 more attributes
Native Google Workspace Integration
Basic
—
Cisco Hardware Integration(compatibility)
Third-party compatible
—
Paid Starting Price(USD/user/mo)
$7.25
—
Standalone Monthly Pricing (Pro Tier)(USD per user per month)
$7.25
—
Annual Cost per User (Pro Tier)(USD)
$87 (billed yearly)
—
Monthly Cost per 20-Person Team(USD)
$3,600 (Pro plan at $15/user)
—
Free Trial Duration(days)
7 days
—
Base Monthly Cost Per User(USD)
$8.25 (Pro plan, min 3 users)
—
Show 30 more attributes
Base Monthly Cost Per User(USD)
$7.25
—
Business+ Tier Monthly Cost Per User(USD)
$12.50
—
Price Stability (2024-2026)(months)
No increases for 33 months
—
Free Tier Cost(USD)
Free
Free Basic plan
Pro/Standard Monthly Cost(USD per user/month)
$7.25
$14-$29
Minimum Monthly Cost Per User(USD)
$7.25
—
Years Price Stable (2026)(months)
33+ months
—
Pro Plan Annual Cost(USD)
$150 (billed monthly)
$191.88/year
Pro Plan Monthly Cost (Annual Billing)(USD per user)
$8.75
—
Monthly Cost (Pro Plan)(USD)
$12.50 per user/month
—
Enterprise Plan Monthly Cost Per User(USD)
$12.50
—
Paid Plan Starting Price(USD/user/month)
$7.25
—
Monthly Cost Per User(USD)
$8-12.50 (Pro/Business+)
—
Monthly Cost (Pro Plan, 50 users)(USD)
$412.50/month
—
Monthly Cost (10 Users, Annual)(USD)
$150/month ($1,800/year)
—
Price Per User Per Month (Pro/Standard)(USD)
$12.50/user (Pro plan)
—
Base Monthly Cost (10-person team)(USD)
$80-150
—
Cost for 50-person team(USD/month)
$400-750
—
Pro Plan Monthly Cost(USD)
$8.75
$19.99/month
Annual Subscription Cost (Pro, 100 users)(USD)
$10,500
—
Monthly subscription cost (Pro plan)(USD per user)
$12.50
—
Team Size Cost Efficiency Threshold(team members)
Cost-effective until ~12 users
—
Monthly Subscription Cost (Pro/Standard)(USD)
$8.25
—
Pro Plan Monthly Cost Per User(USD)
$12.50
—
Free Plan Monthly Cost(USD)
$0
—
Pro/Standard Plan Monthly Cost(USD/user)
$13.33
—
Basic Plan Monthly Cost(USD)
$15/month
—
Starting Monthly Price per User(USD)
$14.16
—
Mid-Tier Price(USD/month)
$14-$29
—
Paid Plan Cost (Single User/Month)(USD)
Pro plan $14-29
—
Third-Party App Integrations(integrations)
2,400+
—
Available Integrations(integrations)
2000+
—
Video Meeting Capacity(participants)
Up to 2,000 (with paid plan)
—
Native Office Integration
Limited (third-party connectors)
—
AI Copilot Features
Slack AI (summarization, search, assisted writing)
—
Message History Retention on Free Plan(count)
10,000 most recent
—
Free Tier Meeting Participant Limit(participants)
Unlimited (Slack Huddles for video limited to 50 participants)
—
Show 41 more attributes
Native Video Conferencing
Huddles for brief video, limited to 50 participants; requires external tool for full conferencing
—
Meeting Recording & Auto-Transcription
Not native; requires integration with Otter.ai or similar third-party services
—
Asynchronous Communication Strength(scale 1-5)
5 out of 5 (core feature with channels, threads, and history)
—
Third-Party Integrations Available(count)
2,000+
—
Enterprise AI Features
Advanced AI assistant, smart summaries, automation
—
Available Integrations(count)
2,400+
—
Free Message History(days)
90 days maximum
—
Free Plan Message History Retention(days)
90 days
—
Free Plan External Guest Collaboration(capacity)
Unlimited external guests via workspace invite
—
Email Service Included
No
—
Native Integrations(count)
2,300+
—
Message History Searchable(years)
10 years standard
—
Workflow Automation Steps(built-in steps)
50+
—
Message History on Free Plan(days)
90-day limited access
—
Message History Retention(status)
10,000 messages (free); unlimited (paid)
—
Built-in Project Management(status)
No (requires integrations)
—
Max Video Conference Participants(people)
1000
—
Message History (Free Plan)(days)
90
—
Video Conference Max Participants(participants)
150
—
Message Search History (Free Tier)(days)
90 days
—
Message Search Speed (Free Tier)(indexing scope)
All messages indexed instantly
—
Message History Retention (Free Tier)(days)
90 days
—
Video Meeting Participant Limit(participants)
2000
—
Maximum Free Participants(participants)
300 participants
—
Built-in AI Features
5+ (Companion, Summaries, Previews, Smart Compose)
—
Engagement Tools Available(count)
6+ (polls, Q&A, reactions, hand raising, breakout rooms, live transcription)
—
Meeting Recording Storage (Free Plan)(hours)
1GB cloud storage
—
Virtual Background Library(quality level)
Extensive HD with filters
—
Pro Plan Participant Limit(participants)
300+
—
Free Plan Group Meeting Duration(minutes)
40 minutes
—
Free Plan Participant Limit(participants)
100 participants
—
Integrated Calling Plans(included)
Separate add-on service
—
Advanced Meeting Analytics(included)
Basic analytics
—
Interactive Video Elements
Basic editing, transcription
—
Free Meeting Duration (3+ participants)(minutes)
40 minutes
—
Real-Time Translation Languages(count)
40+ languages (2026)
—
Group Video Call Duration Limit (Free)(minutes)
40 minutes
—
Real-Time Translation Support(Languages)
95+ languages (2026)
—
Message History Retention(text)
Not applicable (meeting-focused)
—
AI Assistant Capabilities(text)
AI Companion 3.0 with agentic AI
—
AI Transcription Support (Standard Tier)(hours/month)
40 hours/month (Zoom One plan)
—
Message Search Speed(seconds)
Excellent - optimized search indexing
—
Voice Audio Codec Quality(kHz)
16 kHz
—
Maximum Video Call Participants(people)
15 participants
—
Real-time Messaging Speed(ms (message delivery latency))
50-100ms (instant)
—
Desktop App Memory Usage(MB)
280 MB
—
Show 3 more attributes
Message Search Response Time(seconds)
2-4 seconds
—
Message Delivery Latency(milliseconds)
<100ms
—
Video Quality (Free Plan)(resolution)
HD (720p)
—
Mobile App Feature Parity(%)
95%
—
Mobile App Type
Native iOS/Android with feature-parity
—
Global Market Share(%)
65%
—
Daily Active Users Worldwide(millions)
20+ million
—
Self-Hosting Available(boolean)
No
—
Self-Hosting Capability
No, cloud-only
—
Self-Hosted/On-Premises Option
No (cloud-only)
—
Google Workspace Integration Level
2 out of 5 (available via integration, not native)
—
AI Features Count (2026)(features)
30+ (CRM tools, meeting summaries, automation, SlackBot enhancements)
—
Deployment Options
Cloud-based SaaS only
—
GDPR & Data Sovereignty Compliance
Compliant but data on Salesforce servers
—
End-to-End Encryption Available
DMs only, Enterprise+ plan
—
End-to-End Encryption Default
Not available
—
Enterprise Security Certifications
SOC 2, HIPAA, FedRAMP, GDPR
—
Security Certifications(compliance level)
SOC 2, HIPAA, FedRAMP
—
Show 2 more attributes
Enterprise Security Certifications
SOC 2, HIPAA, FedRAMP, ISO 27001
—
SOC 2 Compliance(text)
Yes, SOC 2 Type II
—
Maximum Meeting Participants(participants)
Unlimited group chats
500+ (Professional tier)
Built-in Task Management(features)
No: messaging-only, requires integrations
—
Message History Searchability(months)
90 days (Free/Pro), unlimited with Enterprise
—
Third-party Integrations(integrations)
2000+
1000+
Native Integrations Available(count)
2200+
—
Third-Party Integrations(count)
2000+ integrations
—
Pre-built Integrations(count)
2,400+ integrations
—
AI Features (2026)
Workflow automation, search enhancement
AI Companion 3.0, real-time translation, agentic AI
Real-Time Translation
Not available
Available (AI Companion 3.0)
Asynchronous Communication
Optimized with threads and archives
Secondary with Zoom Chat
Zoom Rooms Cost(USD per room/month)
N/A
$41.58
AI Assistant Capability
Slack AI (optional on paid plans)
—
AI Transcription Languages Supported(languages)
0 (not native feature)
—
AI Meeting Assistant
Slack AI (search, summarization, drafting)
Yes (AI Companion)
Workflow Automation Complexity
Advanced with conditional logic
—
Storage Per User (Standard Plan)(GB)
Variable by plan
—
Cloud Storage (Base Plan)(GB)
10 GB
—
File Storage Included(GB)
5GB (Free), varies by plan
—
Free Tier File Storage(GB per user)
1 GB shared workspace
—
Message history retention (free plan)(days)
90 days searchable
—
Show 3 more attributes
File Upload Limit(GB)
20GB
—
File Storage Per User(GB)
100 (workspace)
—
Free Plan Monthly Cloud Storage(GB)
1 GB
—
Open Source
No, proprietary
—
Maximum Video Length (Free Tier)(minutes)
N/A
—
Maximum Video Resolution(pixels)
Requires 3rd party
—
Maximum Screen Recording Resolution(pixels)
1080p at 60fps
—
Maximum Video Sharing Quality(fps at resolution)
60fps at 1080p
—
Maximum Video Resolution (Free Plan)(pixels)
720p
—
Free Tier Message History Retention(days)
90 days
—
Enterprise Uptime SLA(percent)
99.99%
—
Uptime SLA Guarantee(percent)
99.99%
—
Uptime Guarantee(percent)
99.99%
—
Service uptime SLA guarantee(percent)
99.99%
—
User Workspace Limit (Free Tier)(workspaces)
1 workspace
—
Maximum Meeting Participants (Free)(participants)
3 participants
—
Maximum Meeting Participants (Paid)(participants)
Unlimited (slide deck view only)
—
Free Plan Message History(months)
90 days
—
FedRAMP Authorization(boolean)
No
—
HIPAA Compliance Certified
Yes (Business+ plan required)
—
SOC 2 Type II Certified
Yes
—
Custom Workflow Automation
Advanced (Workflow Builder, automations)
—
Users Per Workspace(count)
Unlimited
—
Total Registered Users(millions)
750 million
—
Third-Party Integrations Available(count)
2,300+ integrations
1,500+
Native App Integrations Available(count)
2,400+ apps
—
Daily Posts Published (Organic)(millions)
N/A
—
Active Workspaces(workspaces)
750,000+
—
Global Active Users(millions)
750+ million messages daily across 750k+ organizations
—
Threading Model
Channel-based threads (contextual loss in active channels)
—
Open Source
Proprietary (closed-source)
—
Native Video/Audio Calls
Yes (Slack Huddles)
—
Paid Workspaces/Users (Enterprise Adoption)(workspaces)
750,000+ paid workspaces
—
Active Global Workspaces/Deployments(count)
750,000+ active workspaces
—
Source Code Availability
Proprietary/closed
—
Setup Time for New Team(hours)
0.5-1 hour
—
Setup Complexity
Moderately complex
—
Average Setup Time for New Recording/Meeting(minutes)
7 minutes
—
Voice Codec Quality Rating(score (1-10))
7.5
—
Time to Deploy(hours)
3-7
—
Learning Curve(hours to proficiency)
2
—
Monthly Active Users(users)
0.75 million
—
User interface satisfaction rating(out of 10)
9.2/10
—
Average User Adoption Time(days)
1-3 days
—
G2 Ease of Use Rating (2024)(stars)
4.5/5
—
G2 User Interface Rating(out of 5)
4.6/5 (12,400 reviews)
—
Maximum video call participants (free tier)(people)
100 participants
—
Free Group Video Call Duration Limit(minutes)
40
—
Maximum Video Conference Participants (Free)(people)
Limited (typically 3-4)
—
Enterprise app marketplace size(applications)
2,000+ apps (Slack App Directory)
—
Message Search Capability(text)
Full-text indexed across all messages
—
Chat Message Formatting Options(capabilities)
Rich formatting, code blocks, file sharing, emoji reactions
—
Meeting Type
Synchronous (real-time)
—
Mobile App Support(text)
iOS, Android, full feature parity
—
Update Frequency (2026)(releases per month)
2-3 per month
—
Cloud Storage Included(GB)
Limited (varies by plan)
—
Setup Time (Minutes)(minutes)
5-10
—
Gartner Review Rating(stars)
4.5 stars (6,286 reviews)
—
Maximum Live Participants(participants)
300 (Pro+)
—
Webinar Capacity(attendees)
1000+ (webinar feature)
—
Max Participants (Free Plan)(people)
Up to 100 (time-limited to 40 minutes)
—
Max Participants (Paid Plan)(people)
300
—
Free Plan Recording Limit(recordings)
40 minutes (3+ participants)
—
AI Features Available (2026)
AI Companion 3.0, real-time translation, auto bug reporting
—
Setup Time Required(hours)
Schedule meeting in advance
—
AI Features in Base Tier
Yes (AI Companion 3.0)
—
Enterprise Deployment Adoption (500+ seat orgs)(percentage)
33% of deployments
—
3-Year TCO Advantage for 1,000 Users with M365(percentage savings)
Baseline (higher cost)
—
Starting Price(USD)
$0 (Free)
—
User Review Rating(stars)
4.6
—
AI Features(count)
AI Companion 3.0, agentic AI
—
Meeting Participant Limit(Users)
Unlimited
—
Pros & Cons
10 pros·4 cons across both
S
Z
S
Slack
+5-2
Pros
- Industry-leading asynchronous communication with threaded conversations
- 2000+ integrations with extensive workflow automation capabilities
- Most affordable Pro plan at $7.25/user/month with 33-month price stability
- Superior searchability across message history and shared files
- Excellent for distributed and remote teams across time zones
Cons
- Limited video conferencing capabilities; not ideal for large virtual meetings
- Can create notification fatigue without proper channel management
Z
Zoom
+5-2
Pros
- Industry-leading video conferencing with support for 300+ participants
- AI Companion 3.0 with real-time translation and agentic AI capabilities
- Comprehensive unified communications with meetings, chat, phone, and webinars
- Superior screen sharing, recording, and webinar functionality
- Built-in breakout rooms and interactive meeting features
Cons
- Higher cost at $14-$29/user/month for comparable features
- Zooming fatigue concerns with over-reliance on video meetings
Frequently Asked Questions
5 questions
Yes, absolutely. Most organizations use both platforms complementarily. Slack serves as the primary communication and collaboration hub for asynchronous work, while Zoom handles synchronous video meetings and webinars. Slack can even integrate with Zoom to initiate meetings directly from Slack messages.
Resources & Learn More
Curated sources to dive deeper
Where to Buy
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Wikipedia
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