Mattermost vs Slack
Both are team chat tools. Here's how their key features, pricing and fit line up, from each vendor's own site.
| Feature |
|
Slack
Category leader
|
|---|---|---|
| Pricing | Contact sales | Free plan $7.25/user/month billed annually ($8.75 monthly) |
| Best for | Regulated enterprises and government teams that must run chat on their own or air-gapped infrastructure. | Teams of 10-5,000+ that run on many connected apps and need the largest integration ecosystem, though the free plan keeps only 90 days of history. |
| Team size | 51–500+ people | 1–500+ people |
| Channels | Yes | Yes |
| Threaded replies | Not listed | Yes |
| Direct and group messages | Not listed | Yes |
| Searchable history | Yes | Yes |
| App integrations | Yes | Yes |
| Huddles and calls | Yes | Yes |
| Visit | Visit | Visit |
A missing check may just mean we haven't confirmed the feature yet. Something wrong? Vendors can claim their listing and send corrections.