Cal.com vs Trello
Detailed comparison to help you choose the right tool for your needs
C
Cal.com
Open-source scheduling infrastructure for everyone
4.5
Editorial RatingQuick Comparison
Rating
4.5
vs4.4
Starting Price
Free
vsFree
Pricing Model
freemium
vsfreemium
Feature
Cal.com
Trello
Unlimited event types
Calendar integrations
API access
Self-hosting option
Team scheduling
Embed widgets
Unlimited cards
Kanban boards
Power-Ups
Butler automation
Mobile apps
Templates
Cal.com Pros
- Fully open-source with self-hosting option
- No booking limits on free plan
- Deep API and webhook support
- Active community and rapid development
Cal.com Cons
- Self-hosted setup requires technical knowledge
- Fewer native integrations than Calendly
- UI less polished than commercial alternatives
Trello Pros
- Dead simple to use
- Great free tier
- Visual and intuitive
- Excellent for kanban workflows
Trello Cons
- Limited views on free plan
- Not ideal for complex projects
- Basic reporting