Slack
← Back to All AI Tools1. Should you try Slack? Overview
| What it is | Slack is the team messaging platform with channels, huddles, workflows and Slack AI for search summaries – the de-facto hub for workplace communication. |
| Country / HQ | San Francisco, California, USA (founded 2009; owned by Salesforce since 2021) |
| Best for | Teams that live in real-time chat and want deep app integrations plus searchable history. |
| Check before buying | Free plan hides history older than 90 days; per-user pricing adds up; AI features are a paid add-on. |
| Editor rating | 4.5 / 5 |
| Pricing signal | Free + Pro ~$8.75/user/mo (annual) |
2. Features What it does
| Feature | What it does |
|---|---|
| Channels | Organized conversations by team, topic or project. |
| Slack AI | Channel/thread summaries, AI search answers and recaps (paid add-on). |
| Huddles | Audio/video calls with screen sharing. |
| Workflow Builder | No-code automations for routine processes. |
| App directory | 2,600+ integrations incl. Jira, Asana, Google Drive. |
| Canvas & lists | Rich documents and task lists inside Slack. |
| Enterprise security | EKM, DLP, compliance APIs on enterprise tiers. |
3. Pricing Pricing (2026-10, USD)
| Plan | Price / mo | Key limits & who it fits |
|---|---|---|
| Free | $0 | 90-day message history, 10 app integrations, 1:1 huddles. |
| Pro | ~$8.75/user/mo (annual) | Unlimited history, unlimited apps, group huddles. |
| Business+ | ~$15/user/mo (annual) | SAML SSO, 99.99% uptime SLA, advanced identity. |
| Enterprise Grid | Custom | Multi-workspace governance and compliance. |
| Slack AI add-on | ~$10/user/mo | Summaries and AI search on paid plans. |
Prices ticked upward in 2024-2025 (Pro around $8.75 annual billing); Slack AI is a separate add-on. Verify current per-user rates at slack.com.
4. Integration Access & integrations
| Access type | Details |
|---|---|
| Apps | 2,600+ directory apps. |
| Automation | Workflow Builder, API, Block Kit. |
| Salesforce | Deep Slack-Salesforce integration. |
| Calling | Huddles plus Zoom/Teams interop. |
5. Reviews & Sources External reviews
| Source | Rating | What it says |
|---|---|---|
| G2 | 4.5 / 5 | The collaboration standard; notification overload is the classic complaint. |
| IT admins | Mixed-positive | Great ecosystem; cost and sprawl need governance. |
| Slack AI users | Positive | Summaries and search answers genuinely save catch-up time. |
6. Best for / Not for Fit
| ✔ Suitable | ✘ Not suitable |
|---|---|
| • Real-time team communication across projects • Companies standardizing on app-driven workflows • Engineering, product and agency collaboration |
• Organizations needing strict async-only norms • Very small teams (free chat tools may suffice) • Frontline workers without desks |
7. Competitors How it compares
| Competitor | How it differs | Best for |
|---|---|---|
| Microsoft Teams | Teams bundles with M365; Slack wins UX and app ecosystem. | Microsoft-standard orgs. |
| Discord | Discord is cheaper and casual; Slack is business-grade. | Gaming/creator communities. |
| Google Chat | Chat is included in Workspace; Slack is more capable. | Google-only teams. |
8. Summary Verdict
| Takeaway | The workplace chat benchmark: unmatched integrations and, with the AI add-on, real catch-up value – budget per-user and govern notifications. |
| Who should pick it | Teams of 10+ that coordinate daily in channels and apps. |
| Who should skip it | Cost-sensitive orgs already on M365 without chat gaps. |