Mattermost
Sales quote
No public priceask sales
Per year
Quote
No public price
Mattermost vs Rocket.Chat
Compare with for .
Mattermost
58%
match · quote
Rocket.Chat
56%
match · quote
What matters most?
Fine-tune
What you'd pay
Entry plan for 10 people, billed yearly where offered. Prices checked Oct 2026.
Rocket.Chat
Sales quote
No public priceask sales
Per year
Quote
No public price
Mattermost
From FreeFree plan
G2 4.3 · 369 reviewsSecurity-sensitive and regulated organizations, and DevOps teams, that must run Slack-style chat on their own servers and want incident playbooks next to the chat.
vs
Rocket.Chat
From FreeFree plan
G2 4.2 · 373 reviewsGovernment, defense and regulated organizations that need sovereign or air-gapped chat with federation, and small teams under 50 users who want SSO for free.
Side by side
| Mattermost | Rocket.Chat | |
|---|---|---|
| Pricing | Free self-hosted editions; paid plans by quote | Free self-hosted editions; paid plans by quote |
| G2 Rating | 4.3 (369 reviews) | 4.2 (373 reviews) |
| Best For | Security-sensitive and regulated organizations, and DevOps teams, that must run Slack-style chat on their own servers and want incident playbooks next to the chat. | Government, defense and regulated organizations that need sovereign or air-gapped chat with federation, and small teams under 50 users who want SSO for free. |
Pros and cons
Mattermost
Pros
- Self-hosting is the default, not an add-on
- Air-gapped and DDIL deployments on Enterprise Advanced
- Playbooks and Boards built in for incident and DevOps work
- Open source core under AGPLv3 with a large plugin platform
Cons
- No public prices for any paid plan; annual prepaid only
- Version 11 cut the free Team Edition from 1,000 to 250 users
- Free Team Edition mobile push runs on a test service with no production SLA
Rocket.Chat
Pros
- Starter includes SSO and LDAP free for up to 50 users
- Matrix and XMPP federation on Government and Defense plans
- Can be self-hosted or run as a dedicated cloud by the vendor
- Defense plan lists Iron Bank and DoD authorization up to IL6
Cons
- No public prices for any paid plan
- Air-gapped support is paid only
- Several listed security features are marked as planned for 2026
Sarah Chen