Slack
90 days
free message history
Unlimited
channels
1-on-1 (free), up to 50 (paid)
video calls
5GB total workspace (free)
file storage
2,600+ apps in Slack Marketplace
integrations
Free; Pro from $8.75/user/mo
pricing
Microsoft Teams
Unlimited
free message history
Unlimited (up to 250 members free)
channels
Up to 100 participants, 60 min (free)
video calls
5GB total, 2GB per user (free)
file storage
1,000+ apps in Teams Store
integrations
Free; Essentials from $4/user/mo
pricing
Discord
Unlimited
free message history
Unlimited text and voice
channels
Up to 25 video (servers), screen share
video calls
25MB per file (free), 500MB (Nitro)
file storage
Bots + 50,000+ community bots
integrations
Free; Nitro from $10/mo
pricing
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