Head to head · 4 tools

Cal.com vs Missive vs Slack vs Trengo

Starting price

$15

Starting price

$14/seat/month

Starting price

$7.25/month

Starting price

$299/month

Attribute	Cal.com	Missive	Slack	Trengo
Category	Events, Scheduling & Booking	Communication	Communication	Customer Support & Success
Pricing	Free tier	Paid	Free tier	Paid
Starting price	$15	$14/seat/month	$7.25/month	$299/month
Free tier	Yes	No	Yes	No
Free trial	Yes	Yes	Yes	Yes
Deployment	Hybrid	—	—	—
API available	Yes	Unknown	Yes	Unknown
Platforms	—	—	—	—
Certifications	3	—	8	—
Integrations	6	1	2	1
Company	—	—	Founded 2009	—
Feature attributes
Sso Saml	✓ Yes	— Unknown	✓ Yes	— Unknown
Rbac	✓ Yes	— Unknown	✓ Yes	— Unknown
Mobile App	— Unknown	— Unknown	— Unknown	— Unknown
Webhooks	✓ Yes	— Unknown	— Unknown	— Unknown
Data Export	— Unknown	— Unknown	✓ Yes	— Unknown
Calendar Integrations	✓ Yes	— Unknown	— Unknown	— Unknown
Group Scheduling	✓ Yes	— Unknown	— Unknown	— Unknown
Payment Collection	✓ Yes	— Unknown	— Unknown	— Unknown
Routing Forms	✓ Yes	— Unknown	— Unknown	— Unknown
Self Hosting	✓ Yes	— Unknown	— Unknown	— Unknown
Video Conferencing	— Unknown	— Unknown	✓ Yes	— Unknown
Team Messaging	— Unknown	— Unknown	✓ Yes	— Unknown
Max Participants	— Unknown	— Unknown	— Unknown	— Unknown
Screen Sharing	— Unknown	— Unknown	✓ Yes	— Unknown
Guest Access	— Unknown	— Unknown	— Unknown	— Unknown

Also consider

Unknown values show as “Unknown”/“—”. Nothing is inferred — see each tool page for sources.