Slack Review
Last updated: 2026-07-11
Overview
Slack is the most popular business communication platform, used by over 65 million people daily. Its channel-based messaging keeps conversations organised and searchable, while its 2,600+ app ecosystem makes it the central hub for team collaboration.
Pros & Cons
Pros
- Channel-based organisation keeps conversations structured and searchable
- Massive app ecosystem (2,600+ integrations)
- Excellent search — finds any message, file, or snippet
- Voice and video calls (Huddles) built in
- Workflow Builder for no-code automation
Cons
- Can become noisy and distracting in large organisations
- Free plan limited to 90 days of message history
- Pro plan is $7.25/user/mo — costs scale fast for large teams
- Thread management can be confusing
- No built-in task management (needs integration)
Features
Slack's channel system is its foundation — create channels for projects, teams, topics, or clients. Direct messages and group DMs handle private conversations. Huddles provide quick voice/video calls (up to 50 participants on Business+). The canvas feature creates rich documents within Slack. Workflow Builder enables no-code automation (Pro plan+). Search is excellent — find any message, file, or snippet across your workspace. Integrations cover 2,600+ apps including Google Drive, Salesforce, Zoom, and Zapier. The main drawbacks are noise in large organisations, a 90-day message history limit on the free plan, and per-user pricing that scales fast.
| Free plan | 90 days history, 10 apps |
| Starting paid price | $7.25/user/mo (Pro), $12.50/user/mo (Business+) |
| Channels | Public, private, shared |
| Message history | 90 days (Free), 90 days (Pro), unlimited (Business+) |
| Video calls | Huddles (up to 50 participants on Business+) |
| File sharing | ✅ Yes |
| API access | ✅ Yes |
| Integrations | 2,600+ apps |
| Workflow Builder | Pro plan+ |
| Support | Email (Pro), 24/7 (Business+) |
Pricing
Slack has four tiers: Free (90-day history, 10 app integrations, 1:1 video calls), Pro ($7.25/user/mo — unlimited history, unlimited integrations, Huddles), Business+ ($12.50/user/mo — SAML SSO, compliance exports, 24/7 support), Enterprise Grid (custom pricing — for large organisations). The free plan is suitable for small teams testing Slack. Most teams need Pro for message history beyond 90 days.
Final Verdict
Slack is the industry standard for team communication. Its channel organisation, search, and integration ecosystem are unmatched. The main drawbacks are the 90-day history limit on the free plan and per-user pricing. For teams of 10+ people, Slack is the best choice. 4.4/5.
Frequently Asked Questions
Is Slack's free plan useful?
Yes for small teams, but the 90-day message history limit is restrictive. If your team references past conversations, you'll need the Pro plan ($7.25/user/mo) for unlimited history. The free plan also limits you to 10 app integrations.
Does Slack have video calls?
Yes. Huddles provide quick voice and video calls. On the free plan, 1:1 video calls are available. Pro adds group Huddles (up to 50 participants on Business+). For full video conferencing features, integrate Zoom or Google Meet.
Is Slack or Discord better for business?
Slack is better for business — channel organisation, enterprise features (SSO, compliance), and 2,600+ business integrations. Discord is better for communities and casual teams. Most businesses should use Slack.