Mattermost: pricing, pros and cons
Mattermost is the answer when the data cannot leave your infrastructure. It trades polish and ecosystem for total control, including air-gapped deployment.
- Price
- $10/seat/moestimate
- At 50 people
- $6,000/yr
- Free tier
- Yes
- Website
- mattermost.com
Specification
What Mattermost supports
The dimensions every chat tool in our catalogue is compared on.
- Conversation model
- Channels with threads
- External guests
- No
- Voice and video
- Basic calls
- Retention and export controls
- Yes
- Integrations
- 200 apps
- SAML single sign-on
- Yes
- SOC 2
- Yes
- EU data residency
- Yes
- Self-hostable
- Yes
- Open source
- Yes
- Public API
- Yes
- Native mobile apps
- Yes
The honest assessment
Mattermost: pros and cons
Self-hosting is a real, ongoing operations cost — budget for the people, not just the licence.
What it does well
- Runs entirely inside your own infrastructure, including air-gapped
- Data residency is whatever you decide it is
- Slack-compatible enough that import and muscle memory both survive
What it costs you
- Mobile and desktop clients trail the commercial alternatives in polish
- Integration ecosystem is a fraction of Slack’s
- Upgrades and scaling are your problem once you self-host
Fit
Who Mattermost suits
Choose it if
- Defence, healthcare and finance teams with data residency written into contracts
- Companies with an ops team who would rather own the stack than rent it
Look elsewhere if
- Small teams without anyone to run upgrades, backups and scaling
- Teams that depend on a long tail of third-party integrations
Head to head
Mattermost compared
Direct comparisons against every other chat tool we cover.
4 alternatives
Other chat tools worth a look
Everything else we cover in team communication, cheapest first.
Questions
Mattermost, answered
What is Mattermost best for?
Defence, healthcare and finance teams with data residency written into contracts. Companies with an ops team who would rather own the stack than rent it. In short: open-source, self-hostable team chat built for regulated and air-gapped environments.
What are the downsides of Mattermost?
Mobile and desktop clients trail the commercial alternatives in polish. Integration ecosystem is a fraction of Slack’s. Upgrades and scaling are your problem once you self-host. The trade-off in one line: Self-hosting is a real, ongoing operations cost — budget for the people, not just the licence.
How much does Mattermost cost?
About $10/seat/mo on its common paid tier — roughly $6,000 a year for 50 people. There is a free tier. That figure is our unverified estimate; confirm it with the vendor before budgeting.
What are the best Mattermost alternatives?
In team communication the credible alternatives are Discord, Microsoft Teams, Slack, Zulip. Which fits depends on your team size, budget and non-negotiables — our questionnaire ranks all of them against your answers in about three minutes.
Is Mattermost worth switching away from?
Only if one of its real drawbacks is costing you something concrete. Self-hosting is a real, ongoing operations cost — budget for the people, not just the licence. If none of the downsides above describe your situation, staying is almost always cheaper than moving — a migration costs weeks, and a tool that merely annoys you is not worth them.
Prices are unverified estimates — useful for comparing orders of magnitude, not for budgeting. Confirm the current figure with the vendor before you commit to anything.
Is Mattermost still the right call for your team?
Answer about a dozen questions and we will rank Mattermost against every alternative in team communication — with the reasoning shown, and the cost of switching at your actual seat count.