Calendly
Mattermost
| Feature | Calendly | Mattermost |
|---|---|---|
| Pricing | Free / from $12/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.2 / 5 |
| Best For | sales-teams, recruiters, consultants, freelancers, customer-success | devops-teams, security-conscious-orgs, government, enterprise |
| Founded | 2013 | 2015 |
| Scheduling | ✓ | ✗ |
| Calendar Sync | ✓ | ✗ |
| Routing | ✓ | ✗ |
| Workflows | ✓ | ✗ |
| Team Pages | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Integrations | ✓ | ✓ |
| Messaging | ✗ | ✓ |
| Channels | ✗ | ✓ |
| Playbooks | ✗ | ✓ |
| Self Hosting | ✗ | ✓ |
| Compliance | ✗ | ✓ |
✓ Calendly Pros
- Eliminates scheduling friction completely
- Integrates with all major calendars
- Routing forms for lead qualification
- Team scheduling with round-robin
✗ Calendly Cons
- Free plan limited to one event type
- Can feel impersonal to some recipients
- Advanced routing only on higher plans
✓ Mattermost Pros
- Self-hostable
- Open source
- DevOps integrations
- Secure
✗ Mattermost Cons
- Smaller ecosystem
- Fewer integrations than Slack
- Self-hosting complexity
The Verdict
Calendly is built for sales teams and recruiters, with a focus on scheduling and calendar-sync. Mattermost targets devops teams and security conscious orgs and leads with messaging and channels.
Pricing is close: Mattermost starts at $10/mo versus $12/mo for Calendly — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Calendly edges out on user ratings (4.6 vs 4.2). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Feature-wise, Calendly offers broader built-in capabilities (7 features vs 6), while Mattermost takes a more focused approach — which can mean a simpler, faster onboarding experience.
Bottom line: Calendly has a slight overall edge — but if self-hostable matters most to you, Mattermost may still be the right call.
