Most teams already know it; the free plan's 90-day history limit is the usual reason to start paying, from £5.75 a user.
Kenning's take
What it does
Slack organises team conversation into channels, with direct messages, audio and video huddles, shared documents called canvases and lists for projects. It connects to more than 2,600 apps and now includes AI features such as Slackbot, thread summaries and Slack Code channels for building software with agents. Teams can start free and upgrade per user.
- Channels and direct messages
- Huddles for audio and video
- Canvases and lists
- 2,600+ app integrations
- AI summaries, Slackbot and enterprise search
Who it suits. Companies and teams of any size that want shared chat and workflows.
Key facts
- Category
- Business tools
- Made by
- Slack (Salesforce)
- Launched
- 2013
- How to get it
- free plan; paid Pro and Business+ per user; Enterprise+ through sales
- Works on
- Web, Windows, macOS, Linux, iOS, Android
- In the UK
- Yes
- Free plan
- Free forever plan with 90 days of message history and up to 10 apps
Pricing
| Plan | Price | Billed |
|---|---|---|
| Pro | £5.75 | user per month, billed yearly (£7 monthly) |
| Business+ | £12 | user per month, billed yearly (£14.40 monthly) |
| Enterprise+ | Custom pricing | contact sales |
Ratings
Models and features
- Slack Code 2026-08-20
FAQ
Is Slack free?
Yes, the free plan keeps 90 days of messages and allows up to 10 apps.
How much does Slack cost in the UK?
Pro is £5.75 and Business+ £12 per user a month when paid yearly.
Does Slack have AI?
Yes, including Slackbot, thread summaries and Slack Code; Slackbot needs Business+ or Enterprise+ for full access.
Facts from the maker's own pages and the sources listed. Checked 2026-10-11.
Similar tools
Abstra
Finance automation platform that turns invoice, reconciliation and payment routines into AI-built, auditable workflows.
WRITER Action Agent
WRITER's autonomous work agent for companies, now part of the wider WRITER Agent product.
AdGen AI
Generates ad copy and image ads from a website address and publishes them to Meta, Google, LinkedIn and TikTok.
Revmo (formerly Agent4)
AI agent that answers calls, texts and chats for multi-location businesses and books orders and appointments.