Mattermost vs Teamwire (2026): which should you pick?

Pick Mattermost if

• Fits if your chat has to stay on your own servers or on an air-gapped network
• Works for technical teams who can run and maintain their own server

Look elsewhere if

• Skip it if nobody on the team wants to run a server, as it's self-hosted by design
• Not for you if you want to see a price before talking to anyone, because every paid license is quoted by sales
• Tight if you rely on the free Entry mode, which only shows the latest 10,000 channel messages and has community support
• Watch out: Team Edition has no single sign-on, and the vendor doesn't recommend it for sensitive work
• Pricey if you need workflow automation or boards, as both start on Enterprise, sold as prepaid annual seats

Pick Teamwire if

• Fits if you are a hospital, public body or utility that needs German hosting
• Makes sense if you need alerting and a central directory for 25 or more people

Look elsewhere if

• Pricey if you are a small team, as every plan has a 25-user minimum
• Tight if you need calls, because voice and video conferences are a paid add-on
• Skip it if you need above 500 users on Standard, since that is the cap
• Watch out: chat widget, WhatsApp and federation are quoted on request, and prices are in euros

Mattermost

• No prices are published: Professional, Enterprise and Enterprise Advanced are quoted by sales and sold as prepaid annual seat subscriptions.
• Entry shows only the latest 10,000 channel messages and has community support only; the vendor suggests it for teams of fewer than 50 users.
• It is self-hosted by design; the only vendor-hosted option described is single-tenant Mattermost Cloud Enterprise, arranged through sales.
• Team Edition has no single sign-on, and the vendor does not recommend it for government or sensitive commercial workloads.

Teamwire

• Every plan has a 25-user minimum per organization; Standard tops out at 500 users.
• Voice and video conferences are an optional add-on at 0.75 euros per user per month on Small Business and Standard.
• Chat widget, WhatsApp Business integration and federation are quoted on request.
• Prices are shown in euros.

Mattermost

Channel-based messaging

1-1 and group messages, public and private channels, threaded discussions, file sharing and search across web, desktop and mobile, in 20 languages.

Playbooks

Repeatable playbooks for incident response, change management and compliance, with conditional checklists and escalation. The pricing page lists workflow automation from Enterprise.

Calls and screen sharing

1:1 audio calls with screen sharing are in every paid package, and group calls support about 50 concurrent users per self-hosted server. A 40-minute call limit is planned for Entry.

Boards

Kanban, table, calendar and gallery boards for assigning and tracking tasks next to the conversation. The pricing page lists work management from Enterprise.

AI agents

Agents summarize conversations and take actions using an LLM provider the customer chooses, or a self-hosted model in air-gapped environments.

Integrations and API

A REST API with an OpenAPI 3.0 spec, webhooks, slash commands and a plugin platform, with prebuilt integrations for tools such as Jira, GitHub and GitLab.

Teamwire

Messaging and calls

1:1, group and broadcast chats, attachments, polls, 1:1 voice and video calls and a central user directory.

Alerting and location

Alert messages with an emergency button and acknowledgements, live location sharing and a push-to-talk interface.

Role concept

Operational roles shown beside names let groups follow responsibilities without manual updates.

Administration and compliance

Central user administration, data-retention policies, audit-proof archiving, audit logs and MDM support.

Hosting choices

German cloud in an ISO 27001 and BSI C5 certified data centre; private cloud or on-premise on the Professional plan.

SDKs and APIs

SDKs and APIs connect Teamwire to CRM, ERP, help desk and other systems and to chatbots.

Mattermost

• Entry$0

  Free mode of the Enterprise Edition: Enterprise Advanced features with 10,000 viewable messages, community support, and no compliance or high availability.

• Team Edition$0

  Open-source, MIT-licensed edition for small teams and personal use under 250 activated users, without single sign-on.

• ProfessionalCustom

  For teams of up to 250 users: single sign-on, AD/LDAP sync, guest accounts and next-business-day support. Sold as prepaid annual seats.

• EnterpriseCustom

  Adds workflow automation, work management boards, compliance and data retention tools, federated communications and high availability.

• Enterprise AdvancedCustom

  Adds zero-trust attribute-based access controls, classification banners, burn-on-read messages and support for air-gapped environments.

Teamwire

• Small Business€79

  per month for up to 25 users, billed annually

  Up to 25 users, 3 devices per user, German cloud hosting; the 25-user minimum applies.

• Standard€3.45

  per user / month, billed annually

  25 to 500 users, 3 devices per user, German cloud, LDAP/AD sync and audit logs.

• ProfessionalCustom

  25 to unlimited users, 5 devices per user, private cloud or on-premise hosting; price on request.

Mattermost

• Nonprofit

  3-year Professional license for $250

  Eligible nonprofit and open-source organizations can apply for a 3-year self-hosted Mattermost Professional subscription for up to 1,000 users for a $250 fee.

Teamwire

No public discounts listed.