Best Alternatives to Slack
AI-powered team messaging - channels/AI summaries/2600+ apps. FREE unlimited + Pro $7.25/user/mo. 80% Fortune 100 + OpenAI/Box. Our comprehensive comparison helps you find the perfect Productivity alternative based on pricing, features, privacy, and workflow requirements. We've hand-picked the top-rated tools with strong free tiers and proven user satisfaction.
Quick Comparison
| Tool | Pricing | Best For |
|---|---|---|
| Calendly | freemium | Free scheduling tool that eliminates email back-and-forth. C... |
| Postiz | free-trial | Open-source scheduler, self-hostable for free. Cloud plans S... |
| Trello | freemium | Visual Kanban boards, lists and cards. Free for up to 10 boa... |
| Buffer | freemium | Social media scheduler priced per channel: free for 3 channe... |
| Fathom | freemium | AI notetaker for Zoom, Meet and Teams. Free forever (unlimit... |
Calendly
Free scheduling tool that eliminates email back-and-forth. Connects 6 calendars + 100+ integrations (Zoom/Salesforce/HubSpot).
Postiz
Open-source scheduler, self-hostable for free. Cloud plans Standard $29 (5 channels), Team $39 (10), Pro $49 (30), Ultimate $99 (100) per month, unlimited posts. 7-day trial.
Trello
Visual Kanban boards, lists and cards. Free for up to 10 boards and 10 collaborators per Workspace; paid tiers from $5 per user per month. Marketing, product and PM teams.
Buffer
Social media scheduler priced per channel: free for 3 channels, Essentials $5/channel/month, Team $10/channel/month. 14-day trial on paid plans.
Fathom
AI notetaker for Zoom, Meet and Teams. Free forever (unlimited recordings and summaries); Premium $20/month or $16/month annual; Team $19/user/month or $15 annual (2-user minimum); Business $34 or $25 annual; Enterprise custom; 90-day guarantee.
Bluedot
Bot-free recorder with AI notes. Free (5 meetings lifetime); Basic $14/user/month annual or $18 monthly (audio only, 1-hour cap); Pro $20 annual or $25 monthly (video, unlimited); Business $32 annual or $39 monthly (CRM and ATS integrations); seats prorated.