Slack
Team messaging and collaboration
Slack for Nonprofits: free Pro plan for workspaces of up to 250 members, 85% off Business+
Qualifying nonprofits get Slack Pro free for workspaces with 250 or fewer members, 85% off Pro above that size, and 85% off Business+ at any size.
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- Approval needed
Free Pro for workspaces of 250 or fewer members; 85% off Business+