# Slack

- **Canonical URI:** https://www.vioscale.ai/software/slack
- **Category:** Collaboration Software
- **Homepage:** https://slack.com
- **Also known as:** slack
- **Profile claimed by vendor:** no
- **Last updated:** 2026-08-05T14:31:20.767Z

## Vioscale score

**89.1 / 100**, confidence 51% (medium).

Composite of weighted, independently-sourced signals (no user reviews, no vendor payment).

| Signal | Score | Weight | Contribution | Evidence present |
|---|--:|--:|--:|:--:|
| price_level | 80 | 0.058 | 4.6 | ✓ |
| reliability | 50 | 0.07 | 3.5 | ✓ |
| capabilities | 96 | 0.187 | 18 | ✓ |
| integrations | 98.2 | 0.105 | 10.3 | ✓ |
| security_posture | 10 | 0.07 | 0 | - |
| pricing_transparency | 100 | 0.094 | 9.4 | ✓ |

## Pricing

_As of 2026-08-05, [verify at source](https://slack.com). Independently observed._

from £5.75/mo · Subscription · Free tier

> From £0 (free tier) to £7/user/month (Pro). Free tier available.

| Plan | Price | Free | Commitment |
|---|---|:--:|---|
| Free | Free | ✓ | - |
| Pro | £7/user/month (£5.75/user/month billed annually) | - | - |

### Free

A simpler way to chat and collaborate

**Included limits:** apps: up to 10, message_history: 90 days

- 90 days of message history
- Up to 10 apps from Slack App Directory
- 1:1 audio and video meetings with screen sharing
- 1:1 external messages via Slack Connect
- SAML-based single sign-on
- SCIM user management
- EMM integration support
- Native data loss prevention
- AI conversation summaries
- Slackbot personal AI agent
- AI workflow generation
- AI search
- AI daily recaps
- AI file summaries

### Pro

Drive productivity in one place

- Unlimited message history
- Unlimited app integrations
- 2,600+ apps in Slack App Directory

## About

Slack is a cloud-based messaging and collaboration platform that enables teams to communicate, organize work, and integrate with tools across a unified workspace. Built-in AI capabilities and an extensive app ecosystem support businesses of all sizes.

_Independently observed._

## Platform & deployment

- **Platforms:** iOS, macOS, Web, Android, Windows
- **Deployment:** Cloud / SaaS

## Integrations (4)

_Independently observed._

- Salesforce
- Jira
- Google Drive
- ChatGPT

## Capabilities

_The capabilities that matter for Collaboration Software. "-" = undocumented, not absent._

| Capability | Supported |
|---|:--:|
| **Modality** | |
| Messaging | ✓ |
| Video meetings | ✓ |
| Whiteboard | - |
| **Meetings** | |
| Screen sharing | ✓ |
| Recording / transcription | - |
| **Security** | |
| End-to-end encryption | - |
| SSO / SCIM | ✓ |
| **Access** | |
| Guest / external access | ✓ |
| **Compliance** | |
| Compliance controls | ✓ |
| **Deployment** | |
| Hosting | Cloud only |
| **Scale** | |
| Max participants | - |
| **Ecosystem** | |
| App marketplace | ✓ |
| Public API / bot framework | ✓ |
| **Commercial** | |
| Free tier | ✓ |

## Facts

Every value below carries its source and our confidence. Facts are re-crawled on a freshness schedule.

### pricing

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| pricing.model | commercial | [link](https://slack.com) | 2026-08-05 | 60% (medium) |
| pricing.free_tier | yes | [link](https://slack.com) | 2026-08-05 | 60% (medium) |
| pricing.starting_gbp | 5.75 | [link](https://slack.com) | 2026-08-05 | 60% (medium) |
| pricing.transparent | yes | [link](https://slack.com) | 2026-08-05 | 60% (medium) |
| pricing.price_level | low | [link](https://slack.com) | 2026-08-05 | 60% (medium) |

### integrations

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| integrations.count | 2,600 | [link](https://slack.com) | 2026-08-05 | 60% (medium) |

### reliability

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| reliability.status_page | yes | [link](https://status.slack.com) | 2026-08-05 | 60% (medium) |

### security

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| security.disclosure_policy | yes | [link](https://slack.com/.well-known/security.txt) | 2026-08-05 | 60% (medium) |
| security.gdpr | yes | [link](https://slack.com/security) | 2026-08-05 | 75% (high) |

### market

| Attribute | Value | Source | Retrieved | Confidence |
|---|---|---|---|---|
| market.availability | `{"primaryMarkets":["GB","US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | [link](https://slack.com) | 2026-08-05 | 75% (high) |

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*Source: Vioscale (https://www.vioscale.ai/software/slack). Independent, evidence-based software intelligence. Cite the canonical URI.*