Slack

Range: 2-50 active Effective: Aug 14, 2013 Official source Pricing page

Free: $0/mo 1:1 huddles only Pro: $8.75/user/mo Group huddles up to 50 Business+: $12.50/user/mo Group huddles up to 50 Enterprise Grid: Custom Custom pricing

Features Covered

Video Conferencing Screen Sharing Chat and Messaging

Timeline

Milestone	Date	Notes
Public launch	Aug 14, 2013	Slack launches as team messaging platform
Voice calls	Mar 1, 2016	Native voice calling added
Salesforce acquisition	Jul 21, 2021	Salesforce completes acquisition of Slack Technologies
Huddles launch	Jun 30, 2021	Lightweight audio-first meetings with screen sharing
Huddles video	Sep 1, 2022	Video support added to Huddles

Provisions (3)

Video Conferencing

Implements: Video Conferencing active Effective: Jun 30, 2021

"Slack Huddles provide lightweight, audio-first meetings directly within channels for quick ad-hoc collaboration."

Requirements

Requirement	Details
Huddles	Lightweight audio-first meetings with optional video
Participant limit	Up to 50 participants in a huddle
Multi-channel	Start huddles from any channel or DM

Sources: Slack Huddles

Screen Sharing

Implements: Screen Sharing active Effective: Jun 30, 2021

"Slack Huddles support screen sharing with drawing tools for quick collaborative review sessions."

Requirements

Requirement	Details
Screen sharing	Share full screen or application window in huddles
Drawing tools	Cursor spotlight and drawing on shared screen
Multi-share	Multiple participants can share screens simultaneously

Sources: Slack Huddles

Chat and Messaging

Implements: Chat Messaging active Effective: Aug 14, 2013

"Slack channels and threads are the backbone of modern team communication with thousands of app integrations."

Requirements

Requirement	Details
Channels	Public and private channels for team communication
Threads	Threaded replies to keep conversations organized
Integrations	Thousands of third-party app integrations via Slack Marketplace

Sources: Slack Features