What is Slack?
Slack is a business messaging platform where teams communicate through topic-based channels, direct messages and audio/video huddles. It offers thousands of app integrations, a workflow builder, cross-company channels via Slack Connect, and Slack AI features. It has become the de facto standard in technology companies and distributed teams. On the free plan, message history is limited to 90 days.
Key facts
- Starting price
- $7.25 / user/month
- Pricing model
- Freemium
- Active users
- —
- Customers
- —
- Vendor employees
- 76,000
- Launched
- 2013
- Deployment
- Cloud (SaaS)
- Platforms
- Web, Windows, macOS, Linux, iOS, Android
Strengths & considerations
Strengths
- Intuitive channel-based messaging
- Huge ecosystem of integrations and bots
- Strong search and workflow automation
- Free plan available
Considerations
- Free plan has limited message history
- Can become noisy and distracting
- Per-user cost adds up for large teams
Editorial summary based on public information; not a user review.
Industries & use cases
Industries served
Banking & capital markets
Healthcare
Retail & consumer
Manufacturing & industrial
Government & public sector
Cross-industry
Typical use cases
- Sales pipeline and opportunity management
- Omnichannel customer service with AI agents
- Personalized marketing journeys from unified customer data
Typical Deloitte services
- CRM implementation and multi-cloud transformation
- Agentforce and AI agent design and deployment
- Customer data unification and personalization programs
Editorial profile based on public information.
Features
✓Workflow automation· Automation
✓AI features· Automation
✓Video calls· Communication
✓Screen sharing· Communication
✓GDPR compliance· Compliance
✓SOC 2· Compliance
✓ISO 27001· Compliance
✓HIPAA· Compliance
✓API access· Integrations
✓Webhooks· Integrations
✓Integrations marketplace· Integrations
✓Zapier integration· Integrations
✓Email integration· Integrations
✓Calendar integration· Integrations
✓Mobile app· Platform
✓Multi-language· Platform
✓Single sign-on (SSO)· Security
✓Two-factor authentication· Security
✓Role-based access· Security
✓Audit log· Security
User reviews
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