Head to head · 4 tools

Cal.com vs Fastmail vs Google Workspace vs Microsoft 365

Starting price

$15

Starting price

$3/month

Starting price

$6/month

Starting price

$6/month

Attribute	Cal.com	Fastmail	Google Workspace	Microsoft 365
Category	Events, Scheduling & Booking	Email & Messaging Marketing	Productivity & Collaboration	Productivity & Collaboration
Pricing	Free tier	Paid	Paid	Paid
Starting price	$15	$3/month	$6/month	$6/month
Free tier	Yes	No	Unknown	Unknown
Free trial	Yes	Yes	Yes (14d)	Yes (30d)
Deployment	Hybrid	—	Cloud	Cloud
API available	Yes	Unknown	Yes	Yes
Platforms	—	—	ios, android	—
Certifications	3	—	2	—
Integrations	6	—	—	—
Company	—	Founded 1999	Founded 2006	—
Feature attributes
Sso Saml	✓ Yes	— Unknown	— Unknown	— Unknown
Rbac	✓ Yes	— Unknown	✓ Yes	— Unknown
Mobile App	— Unknown	— Unknown	Ios And Android	— 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
Docs Editor	— Unknown	— Unknown	✓ Yes	— Unknown
Real Time Collaboration	— Unknown	— Unknown	✓ Yes	— Unknown
Storage Included	— Unknown	— Unknown	— Unknown	— Unknown
Offline Access	— Unknown	— Unknown	✓ Yes	— Unknown
Templates	— Unknown	— Unknown	✓ Yes	— Unknown

Also consider

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