Slack vs Cal.com
Criteria
Slack
Cal.com
Tagline
Business messaging platform
Open source scheduling
Tagline
Slack: Business messaging platform
Cal.com: Open source scheduling
Pricing Model
freemium
open-source
Pricing Model
Slack: freemium
Cal.com: open-source
Starting Price
$7/mo
$0/mo
Starting Price
Slack: $7/mo
Cal.com: $0/mo
Free Plan
Yes
Yes
Free Plan
Slack: Yes
Cal.com: Yes
GitHub Stars
—
42.2k
GitHub Stars
Slack: —
Cal.com: 42.2k
npm Downloads/wk
—
201.7k
npm Downloads/wk
Slack: —
Cal.com: 201.7k
GitHub Forks
—
13.1k
GitHub Forks
Slack: —
Cal.com: 13.1k
Open Issues
—
1.3k
Open Issues
Slack: —
Cal.com: 1.3k
Tags
messaging, channels, integrations, huddles
scheduling, open-source, self-hosted, calendly-alt
Tags
Slack: messaging, channels, integrations, huddles
Cal.com: scheduling, open-source, self-hosted, calendly-alt