Mattermost
Plane
| Feature | Mattermost | Plane |
|---|---|---|
| Pricing | Free / from $10/mo | Free / from $7/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.2 / 5 |
| Best For | devops-teams, security-conscious-orgs, government, enterprise | developers, open-source-advocates, startups, engineering-teams |
| Founded | 2015 | 2022 |
| Messaging | ✓ | ✗ |
| Channels | ✓ | ✗ |
| Playbooks | ✓ | ✗ |
| Integrations | ✓ | ✗ |
| Self Hosting | ✓ | ✗ |
| Compliance | ✓ | ✗ |
| Cycles | ✗ | ✓ |
| Modules | ✗ | ✓ |
| Views | ✗ | ✓ |
| Pages | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Analytics | ✗ | ✓ |
✓ Mattermost Pros
- Self-hostable
- Open source
- DevOps integrations
- Secure
✗ Mattermost Cons
- Smaller ecosystem
- Fewer integrations than Slack
- Self-hosting complexity
✓ Plane Pros
- Open source and self-hostable
- Modern clean interface
- Jira-like power without complexity
- Active community
✗ Plane Cons
- Relatively new
- Smaller integration ecosystem
- Documentation still maturing
The Verdict
Mattermost is built for devops teams and security conscious orgs, with a focus on messaging and channels. Plane targets developers and open source advocates and leads with cycles and modules.
Pricing is close: Plane starts at $7/mo versus $10/mo for Mattermost — 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.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.