Zoom
zoom.us
Video meetings that just work
from $15.99/moFree plan
Slack
Work chat that became infrastructure
Free plan availableCommunicationSince 2013
from $8.75/moVisit slack.com
What Slack is
Channels, huddles, workflows and a very deep integration catalogue. Salesforce-owned; the free tier limits message history.
People use it to
Current offers
Free plan
Free plan, no card required
Ongoing free tier published by the vendor. Limits vary by plan.
Slack alternatives
Other tools in communication that cover similar ground. Full comparison.
Microsoft Teams
microsoft.com
Chat and meetings inside Microsoft 365
from $4/moFree plan
Discord
discord.com
Communities with voice always on
from $9.99/moFree plan