1
Slack Free tier

Team messaging platform with channels, threads, and integrations for workplace communication.

Free for small teams, 90-day history · Paid from $7.25/user/mo Teams that need organized, searchable communication
Channels Threads Integrations File Sharing
2
Discord Free

Voice, video, and text communication platform originally built for gaming, now used by communities and teams.

Free Communities, startups, and teams that want free voice + text
Voice Channels Screen Sharing Bots Community Servers
3

Team messaging built into Google Workspace with Spaces, threads, and deep Google app integration.

Paid from $6/user/mo Teams already using Google Workspace
Spaces Threads Google Workspace Bots
4
Zoom Free tier

Video conferencing platform for meetings, webinars, and virtual events.

Free 40-min group meetings · Paid from $13.33/user/mo Teams that prioritize reliable, high-quality video calls
Video Meetings Screen Sharing Webinars Breakout Rooms

Quick comparison: Microsoft Teams vs Slack

Feature Microsoft Teams Slack
Starting price $4/user/mo $7.25/user/mo

See full Microsoft Teams vs Slack comparison →

Microsoft Teams comparisons

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