Report updated May 5, 2026
Slack
For professional teams and organizations requiring centralized communication, project management, and external partner collaboration.
Slack is an established business app that is free with in-app purchases. With a 4.5/5 rating from 233.9K reviews, it shows polarized user reception. Users particularly appreciate centralized workspace organization allows teams to manage multiple projects and company channels effectively in one place, though unreliable push notifications prevent users from receiving critical messages and meeting alerts on mobile devices remains a common concern.
What is Slack?
Slack is a team communication and collaboration platform for professional organizations, structured around persistent channels and third-party integrations on iOS and Android.
Users hire Slack to consolidate fragmented work conversations and automate routine tasks, removing the need for wasteful meetings and email chains.
Current Momentum
v26.04 · today
Active- Shipped VoiceOver accessibility improvements.
- Added draft notification management.
Active Nemesis
Microsoft Teams
By Microsoft
Other Rivals
7-Day Rank Pulse 🇺🇸
BusinessRating Pulse 🇺🇸
Recent User Mood
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Secure communication channels for external partners, vendors, and contractors
AI-powered search, conversation summarization, and automated meeting note transcription
No-code automation for routine tasks like PTO requests and calendar management
How much does it cost?
- Free tier with limited history and integrations
- Pro, Business+, and Enterprise paid tiers
Freemium model gates advanced automation, AI features, and enterprise-grade security behind tiered subscription plans.
Who Built It?
Slack Technologies
Centralizing team communication and automating workflows to transform organizations into AI-powered digital headquarters.
Portfolio
4
Apps
What other apps does Slack Technologies make?
Explore the full Slack Technologies report
Portfolio breakdown, audience, momentum, and every app published by Slack Technologies.
What do users think recently?
High confidence · Latest 100 of 149 total reviews analyzed · Based on 149 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a mixed sentiment. Users appreciate centralized workspace organization allows teams to manage multiple projects and company channels effectively in one place, but report unreliable push notifications prevent users from receiving critical messages and meeting alerts on mobile devices.
What Users Love
What Frustrates Users
What Users Want
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Slack?
Where is it available?
Localized markets (18)
How's The Business Market?
How does it evolve in the Business market?
Slack holds the #17 Free position in the US Business category, but its Grossing rank lags behind discovery-led growth. The reliance on paid-only AI features creates a price-sensitivity risk compared to bundled enterprise alternatives.
Rank progression
90 active rankings tracked — 30-day window
The rivals identified
Nemeses(1)
Teams is the only direct rival matching Slack's enterprise-grade communication scale with a massive, integrated ecosystem footprint.
Differentiators
- Deep integration with the Microsoft 365 suite creates a structural barrier for enterprise adoption.
- Unified platform approach combines persistent chat with native video conferencing and document collaboration tools.
- Enterprise-grade security and compliance features are bundled directly into existing corporate software licensing agreements.
Head to head
Slack must double down on its 'best-of-breed' agility and superior UX to prevent being commoditized by Microsoft's bundled enterprise strategy.
Contenders(3)
Rocket.Chat competes by offering an open-source, flexible communication platform that prioritizes data ownership and customization.
Differentiators
- Open-source foundation allows for deep customization and white-labeling that proprietary platforms like Slack cannot match.
- Omnichannel communication features enable businesses to manage customer support interactions directly within the internal chat interface.
Mattermost provides a critical alternative for highly regulated industries requiring self-hosted, private-cloud communication infrastructure.
Differentiators
- Offers full self-hosting capabilities that satisfy strict data sovereignty and security requirements for enterprise clients.
- Highly extensible architecture allows developers to build custom workflows directly into the core communication platform.
Google Chat serves as a direct, high-velocity alternative for organizations already embedded in the Google Workspace ecosystem.
Differentiators
- Native integration with Google Drive and Docs allows for seamless permission-based file sharing within chat threads.
- High release velocity ensures rapid parity with modern collaboration features across the Google Workspace suite.
Same space(4)
monday.com focuses on structured project management, capturing the workflow-heavy communication that often happens in Slack.
Differentiators
- Visual project boards and automated workflows provide more structure for task-based communication than linear chat threads.
- Built-in automation engine allows teams to trigger actions based on status changes without manual intervention.
Notion competes for the 'digital headquarters' mindshare by combining knowledge management with real-time collaboration.
Differentiators
- Unified workspace for documentation and project tracking reduces the need for separate chat-based status updates.
- Advanced AI-powered knowledge retrieval allows users to query across entire project databases rather than just chat history.
Zoom has expanded from a video-first tool into a comprehensive workplace platform, directly challenging Slack's communication dominance.
Differentiators
- Video-first architecture provides a more stable and feature-rich conferencing experience than Slack's Huddles.
- Consolidated workplace suite integrates phone, chat, and meetings into a single, unified application interface.
While primarily social, Discord's high-fidelity voice and community-focused architecture increasingly overlaps with Slack's team-based communication.
Differentiators
- Superior low-latency voice and video channels provide a more fluid 'always-on' experience for remote teams.
- Community-first permission structures allow for complex, role-based access management that exceeds standard enterprise chat capabilities.
Compare Slack against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Slack
Strengths to defend, gaps to attack
Core Strengths
- Integration ecosystem embeds platform into existing enterprise tech stacks
- Slack Connect network effects force external partner adoption
- Intuitive interface reduces cognitive load compared to Microsoft Teams
Critical Frictions
- Unreliable mobile notifications causing critical message loss
- Persistent read-state synchronization bugs across platforms
- Cluttered UI navigation for high-volume channel users
Growth Levers
- Education sector partnerships for B2B distribution
- Wearable device integration for deskless workforce capture
- Simplified channel filtering to reduce workspace noise
Market Threats
- Microsoft 365 bundling commoditizing communication tools
- Rapid feature parity from Google Workspace updates
- Churn risk from low-cost challengers like Pumble
What are the next best moves?
Rebuild mobile notification service because high-frequency failure reports are driving churn → stabilize daily active usage
Notification reliability is the #1 complaint theme in recent sentiment analysis.
Trade-off: Pause the AI-summarization feature expansion for mobile — notification stability is the prerequisite for daily habit retention.
Audit read-state synchronization logic because badge count errors create confusion → improve user trust
Persistent bugs regarding badge counts and read states are a top-three complaint.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
Slack's primary risk is not feature parity with Microsoft Teams, but the maintenance-mode perception of its mobile experience, which is more vulnerable to a single high-velocity challenger than to enterprise bundling.
Feature Gaps vs Competitors
- Native document collaboration (available in Microsoft Teams but absent here)
- Full self-hosting capabilities (available in Mattermost but absent here)
Key Takeaways
Slack remains the category standard for team agility, but persistent mobile reliability issues and UI bloat threaten its enterprise retention, so the PM must prioritize core stability over new feature expansion to defend against bundled rivals.
Where Is It Heading?
Declining
The enterprise communication market is consolidating around bundled suites, leaving Slack exposed to churn if it cannot maintain its best-of-breed UX advantage. The current focus on stability suggests a defensive posture that, if successful, will preserve the user base while the team addresses technical debt.
Unreliable mobile notifications erode the daily active habit, which compounds the rating drag already visible on Android.
Recent updates focused on accessibility and notification management, indicating a shift toward stability rather than aggressive feature expansion.