Team Chat and Messaging Software

Mattermost review

Self-hostable team chat and collaboration platform sold in Professional, Enterprise and Enterprise Advanced editions, aimed at security-sensitive organizations.

Researched by Max Benz · Facts checked October 24, 2026 · How we research

Mattermost at a glance

Category
Team Chat and Messaging Software
Starting price
Contact sales
Pricing model
per user
Public pricing
No
Free plan
Yes
Free trial
Yes
Contract
prepaid annual subscription by seat
G2 rating
4.3 (368 reviews)

Buying Mattermost: security, admin and contract

SAML SSO
Professional and up (listed under access controls)
Audit logs
Enterprise (advanced logging, compliance export)
Data residency
Self-host anywhere; Mattermost Cloud Enterprise single-tenant region options not stated.
Contract
Prepaid annual subscription.
Support
Community forums; Professional business hours; Enterprise 24x7 with 4-hour response target.

Questions to ask Mattermost before you sign

  • Is SCIM provisioning included, or a paid add-on?
  • Can we sign your standard DPA without changes?
  • What will the price be at renewal, and is the increase capped?

Questions are listed where Mattermost's public pages leave the answer open.

Who Mattermost is for

Choose Mattermost if

  • Organizations that must self-host or run air-gapped chat.
  • Technical and DevOps teams wanting data under their own control.

Look elsewhere if

  • Buyers wanting a public price list or self-serve checkout.
  • Small teams wanting a polished hosted free tier (free edition caps history at 10,000 messages)

Mattermost pricing

Mattermost plans as published on October 24, 2026
PlanPriceUnitNotes
ProfessionalContact salesper seat per year, prepaidUp to 250 users per docs; business-hours support
EnterpriseGet pricingper seat per year, prepaidAdvanced logging, compliance export, 24x7 support
Enterprise AdvancedRequest quoteMulti-domain, air-gapped and sovereign deployments

The vendor publishes no dollar prices. A forum post cites $10 per user per month for Professional (unverified, anecdotal); this is not treated as a list price. Free Entry edition and a limited Enterprise Advanced evaluation edition exist.

Mattermost features by buying criteria

Mattermost features, checked October 24, 2026
CriterionWhat we found
Channels and threadingChannel-centric with threads.
Built-in video and huddlesCalls built in; Entry (free) edition limited to 40-minute calls.
Search and message history limitsEntry edition 10,000 channel messages; unlimited searchable history on Professional.
Guest and external accessGuest accounts on Professional with custom user groups.
Security and admin controlsSSO (SAML) from Professional; AD/LDAP sync; advanced logging, audit logs with export and compliance export on Enterprise.
Mobile app and frontline fitNative iOS and Android apps; Enterprise MDM/EMM support; Entry push notifications capped at 10,000 per month.
Pricing model and transparencyPrepaid annual seat licenses; extra seats bought quarterly true-forward; each server needs its own license.
Target company sizeProfessional up to 250 users; Enterprise scales to tens of thousands.

What reviewers say about Mattermost

Praised for

  • Strong security and data ownership.
  • User-friendly interface and integrations.

Common complaints

  • Interface not intuitive to some users.

Themes paraphrased from public reviews on G2 and similar sites, not quotes.

What most Mattermost reviews leave out

  • Licenses are prepaid annual seats and every server (including staging) needs its own license key.
  • Seats above purchase are added quarterly, prorated to annual cost.
  • Support tiers: Professional business hours next-business-day, Enterprise 24x7 with 4-hour target, Premier is a paid add-on.
  • Supports air-gapped and DDIL deployments.
  • Mattermost docs indicate the minimum purchase is more than 10 users.

Mattermost alternatives

  • SlackTeams wanting channel-based chat with a large app ecosystem.
    $8.75/user/month monthly, about $7.25/user/month billed annually (Pro)
  • Microsoft TeamsOrganizations already on Microsoft 365 and Entra ID.
    $4.00/user/month paid yearly (Teams Essentials)
  • Rocket.ChatRegulated or public-sector organizations that need on-premises, air-gapped or sovereign-cloud chat.
    Contact sales
  • Zoho CliqTeams already on Zoho apps (CRM, Projects, Workplace) that want chat inside that suite.
    Free; paid Standard plan (USD amount not verified)
  • FlockSmall teams (up to about 100 members) wanting low-cost chat with a free tier.
    Free (Starter); PRO price not shown on current page
  • ChantySmall teams wanting cheap per-user chat with tasks.
    Free up to 5 members; Business 3 EUR per user/month billed annually (EUR only)

Sources

Every fact on this page comes from Mattermost's own pricing, product or documentation pages, G2 and company records, checked on October 24, 2026. Unknown values are left out instead of estimated.

Sources (4)
  1. pricing page and FAQ (mattermost.com)
  2. editions (docs.mattermost.com)
  3. g2.com
  4. about.mattermost.com