Slack
AI work platform connecting teams, automating workflows, and boosting productivity.
Slack is a collaborative workspace platform that combines messaging, video calls, and AI-powered automation. It integrates with hundreds of apps and AI agents, enabling teams to manage projects, search company knowledge, and streamline workflows from one central hub. Trusted by innovative companies like OpenAI, Box, and Rivian for secure, scalable team collaboration.
How we scored it
A weighted average of the 6 dimensions below, each judged 0–10 from published pricing, vendor documentation and independent user feedback. We do not run hands-on tests, and no vendor has any say in a score.
What it actually costs
Intro pricing shown — see the renewal note for what you'll pay after the introductory term. We don't hide the second-act price.
Free
Free forever; $0 USD. 90 days of message history; Up to 10 apps; Basic AI features listed on pricing page.
Pro
Per user / month. Page shows a limited-time 50% off for 3 months (discounted monthly display also shown); unlimited message history and unlimited app integrations.
Business+
Per user / month. Page shows a limited-time 50% off for 3 months (discounted monthly display also shown); Enterprise features listed for higher tiers.
What to check before you move a team onto Slack
An app a team lives in all day is the hardest kind of software to leave. These are the questions that matter more than the feature list.
What it costs per seat, in a year
At $8.75 per user per month, a team of ten is $1050 a year before a single add-on. Price the team you will have in a year, not the one you have today.
Which roles have to pay
Many plans charge full price for people who only need to read or approve. If light users need a seat, the real cost is the headline price times everyone, not times the core team.
Whether you can get your data out
Ask what a full export contains and in what format. An export that drops attachments, comments or history is not an export — it is a reason you will not leave.
What the move itself costs
Migration, retraining and the weeks of lower output are the real switching cost. Count them once when you adopt, because you pay them again if you change your mind.
These are the checks we apply across saas, in the same order, so two pages can be compared line for line.
How much does Slack really cost?
Our calculation from the vendor's published prices — not a figure the vendor advertises.
The headline price is for one person. Adding people multiplies it, so a team of ten pays ten times the advertised figure. Paid plans are charged per user (per seat) and price scales linearly with number of seats; Enterprise+ requires contacting sales for custom pricing.
| Team size | Per month | Per year | Over 3 years | How it is charged |
|---|---|---|---|---|
| 1 person | $8.75 | $105 | $315 | $8.75 per seat per month |
| 5 people | $43.75 | $525 | $1,575 | $8.75 per seat per month |
| 10 people | $87.50 | $1,050 | $3,150 | $8.75 per seat per month |
| 50 people | $437.50 | $5,250 | $15,750 | $8.75 per seat per month |
Based on the Pro plan at $8.75 a month. Three years at the published annual price. No renewal increase is published.
- The vendor does not publish a renewal price, so three-year totals assume today's price holds.
Work out your own cost
- $8.75 per seat per month.
- Billed annually at $7.25 per month equivalent.
Features at a glance
Every meaningful capability, listed plainly. ✓ included, ✕ not included, or a specific value where it matters.
capability
technical
pricing
Slack against the field
The highest-scoring alternatives in the same category, compared on the figures we hold for all of them.
| SlackThis page | Figma | Notion | |
|---|---|---|---|
| ReviewCost score | 8.6/10 | 8.6/10 | 8.3/10 |
| Cheapest plan | Free | — | — |
| From | — | — | — |
| Renews at | Not published | Not published | Not published |
| Biggest strength | Slackbot's contextual awareness of your team's conversations and files eliminates constant app-switching — it actually knows what you've been working on | Real-time collaboration is genuinely excellent — multiple designers can work simultaneously without conflicts or lag | Custom Agents genuinely automate repetitive workflows — teams report 3x faster timelines and hours saved on manual ops |
| Biggest drawback | AI features like Slackbot and summarisation require paid plans, pricing out smaller teams who'd benefit most from automation | Performance degrades noticeably on complex files with hundreds of artboards or heavy plugins | Performance degrades noticeably with databases over 10,000 rows — not built for data-heavy use cases |
Prices are the published figures at the time of writing and change often. Renewal pricing is shown where the vendor publishes it. See how we review.
What people ask about Slack
Straight answers to what buyers actually ask, drawn from the documentation and published user reports.
Is the free tier actually usable for a small team?
How much does Slack actually cost per person?
Can I actually reduce email with Slack?
Are the AI features worth paying for?
Is Slack better than Microsoft Teams?
Page history
- Published
- 21 May 2026
- Last updated
- 1 October 2026
- Pricing checked against vendor
- 1 October 2026
Sources & verification
Pricing on this page was taken from the vendor's published pricing page on 1 October 2026.
- Slack Pricing Plans: Find the Right Fit for Your Team | SlackOfficial pricing page · Slack · read 1 October 2026