# Mattermost vs Zulip

**Leader by vioscaleAI score:** Mattermost

| Attribute | Mattermost | Zulip |
|---|---|---|
| **vioscaleAI score** | 67 (65% (medium)) | 61.7 (72% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 371 | - |
| adoption.github_stars | 39,264 | - |
| content.faq | `[{"answer":"Mattermost is a self-hosted or cloud-based collaboration platform offering secure messaging, voice calling, screen sharing, workflow automation, and AI-assisted tools for teams and enterprises. It is indexed under Collaboration Software.","source":"https://mattermost.com","question":"What is Mattermost?","confidence":0.6},{"answer":"Mattermost offers a free tier, so you can start without paying. Paid plans are also available: Open Source, Enterprise E10 and Enterprise E20. Pricing changes often, so verify at source before relying on it.","source":"https://mattermost.com","question":"Is Mattermost free?","confidence":0.6},{"answer":"Mattermost supports the web, Windows, macOS, Linux, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://mattermost.com","question":"What platforms does Mattermost support?","confidence":0.6},{"answer":"Yes. Mattermost can be deployed cloud / SaaS, hybrid, on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://mattermost.com","question":"Can Mattermost be self-hosted?","confidence":0.6},{"answer":"We have confirmed 14 integrations for Mattermost, including Slack, Git, Jenkins, Twitter, Bugzilla, RSS, Gerrit and Redmine, plus 6 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://mattermost.com","question":"What does Mattermost integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Mattermost. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Mattermost not holding them. Always confirm compliance directly before you rely on it.","source":"https://mattermost.com/security","question":"What security certifications does Mattermost have?","confidence":0.7},{"answer":"Mattermost is available worldwide. Its primary markets are the United States, Canada, the United Kingdom, the EU and Japan. The vendor is headquartered in the United States.","source":"https://mattermost.com","question":"Where is Mattermost available?","confidence":0.75}]` | `[{"answer":"An open-source team collaboration application that organizes conversations into topic-based threads, blending instant messaging with email-style threading to support both real-time and delayed communication patterns. It is indexed under Collaboration Software.","source":"https://zulip.com","question":"What is Zulip?","confidence":0.6},{"answer":"Zulip is open source, so it can be self-hosted and used at no licence cost. A commercial or hosted edition starts at $3.50 per user per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://zulip.com/plans/","question":"Is Zulip free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Zulip. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://zulip.com","question":"What platforms does Zulip support?","confidence":0.6},{"answer":"Yes. Zulip can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://zulip.com","question":"Can Zulip be self-hosted?","confidence":0.6},{"answer":"We have confirmed 61 integrations for Zulip, including Slack, Microsoft Teams, Discord, Mattermost, Rocket.Chat, Matrix, IRC and Email, plus 53 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://zulip.com/plans/","question":"What does Zulip integrate with?","confidence":0.6},{"answer":"We have independently confirmed HIPAA and GDPR for Zulip. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Zulip not holding them. Always confirm compliance directly before you rely on it.","source":"https://zulip.com/security/","question":"What security certifications does Zulip have?","confidence":0.7}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Mattermost is a self-hosted or cloud-based collaboration platform offering secure messaging, voice calling, screen sharing, workflow automation, and AI-assisted tools for teams and enterprises. | An open-source team collaboration application that organizes conversations into topic-based threads, blending instant messaging with email-style threading to support both real-time and delayed communication patterns. |
| features.capabilities | `{"hosting":"both","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"whiteboard":false,"pricing_model":"per_seat_subscription","screen_sharing":true,"video_meetings":false,"app_marketplace":true,"deployment_model":"self_hosted_on_premise","compliance_controls":true,"guest_external_access":true,"recording_transcription":"recording_ai_notes","cross_company_guest_channels":true,"threaded_reply_conversations":true,"automated_workflow_bot_builders":true,"channel_based_topic_organization":true,"jira_github_engineering_webhook_sync":true,"robust_message_search_and_history_indexing":true}` | `{"hosting":"both","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"pricing_model":"per_seat_subscription","e2e_encryption":true,"screen_sharing":false,"video_meetings":true,"app_marketplace":true,"deployment_model":"cloud_saas","hipaa_compliance":true,"compliance_controls":true,"guest_external_access":true,"ad_hoc_voice_video_huddles":true,"cross_company_guest_channels":true,"threaded_reply_conversations":true,"automated_workflow_bot_builders":true,"channel_based_topic_organization":true,"google_workspace_office_365_sync":true,"jira_github_engineering_webhook_sync":true,"salesforce_zendesk_sales_support_sync":true,"robust_message_search_and_history_indexing":true}` |
| integrations.count | 700 | 130 |
| integrations.list | `[{"name":"Slack"},{"name":"Git"},{"name":"Jenkins"},{"name":"GitLab"},{"name":"GitHub"},{"name":"Twitter"},{"name":"Bugzilla"},{"name":"RSS"},{"name":"Gerrit"},{"name":"Redmine"},{"name":"Mercurial"},{"name":"SVN"},{"name":"Threema"},{"name":"Pexip"},{"name":"Prometheus","category":"monitoring","direction":"inbound"},{"name":"Grafana","category":"monitoring","direction":"inbound"},{"name":"Microsoft Teams","native":true,"category":"chat","direction":"bidirectional"},{"name":"Matrix","native":false,"category":"chat","direction":"bidirectional"},{"name":"XMPP","native":false,"category":"chat","direction":"bidirectional"},{"name":"Trello","native":true,"category":"project_management","direction":"outbound"},{"name":"ServiceNow","native":true,"category":"itsm","direction":"bidirectional"},{"name":"PagerDuty","native":true,"category":"incident_response","direction":"bidirectional"},{"name":"Splunk","native":true,"category":"monitoring","direction":"bidirectional"},{"name":"Nagios","native":true,"category":"monitoring","direction":"bidirectional"},{"name":"Ansible","native":true,"category":"automation","direction":"outbound"},{"name":"Matterbridge","native":false,"category":"chat","direction":"bidirectional"}]` | `[{"name":"Slack"},{"name":"Microsoft Teams"},{"name":"Discord"},{"name":"Mattermost"},{"name":"Rocket.Chat"},{"name":"Matrix"},{"name":"IRC"},{"name":"Email"},{"name":"GitHub"},{"name":"GitLab"},{"name":"Bitbucket"},{"name":"Asana"},{"name":"Jira"},{"name":"Linear"},{"name":"Trello"},{"name":"Basecamp"},{"name":"Jenkins"},{"name":"CircleCI"},{"name":"GitHub Actions"},{"name":"Travis CI"},{"name":"TeamCity"},{"name":"Heroku"},{"name":"Netlify"},{"name":"Docker"},{"name":"Kubernetes"},{"name":"Ansible Tower"},{"name":"Puppet"},{"name":"Grafana"},{"name":"Prometheus"},{"name":"Nagios"},{"name":"New Relic"},{"name":"Sentry"},{"name":"PagerDuty"},{"name":"Opsgenie"},{"name":"Splunk"},{"name":"Freshdesk"},{"name":"Zendesk"},{"name":"Salesforce"},{"name":"Dropbox"},{"name":"Google Calendar"},{"name":"Nextcloud"},{"name":"Notion"},{"name":"Zapier"},{"name":"IFTTT"},{"name":"n8n"},{"name":"BigBlueButton"},{"name":"Jitsi Meet"},{"name":"Webex"},{"name":"Zoom"},{"name":"Tenor"},{"name":"Redmine","native":true,"category":"project_management","direction":"inbound"},{"name":"OpenProject","native":true,"category":"project_management","direction":"inbound"},{"name":"Zabbix","native":true,"category":"monitoring","direction":"inbound"},{"name":"Buildbot","native":true,"category":"ci_cd","direction":"inbound"},{"name":"GoCD","native":true,"category":"ci_cd","direction":"inbound"},{"name":"Stripe","native":true,"category":"payments","direction":"inbound"},{"name":"Okta","native":true,"category":"identity","direction":"inbound"},{"name":"OneLogin","native":true,"category":"identity","direction":"inbound"},{"name":"Microsoft Entra ID","native":true,"category":"identity","direction":"inbound"},{"name":"Discourse","native":true,"category":"community","direction":"inbound"},{"name":"Mastodon","native":true,"category":"social","direction":"inbound"},{"name":"Patreon","native":true,"category":"productivity","direction":"inbound"},{"name":"Airbrake","native":true,"category":"error_tracking","direction":"inbound"}]` |
| language.primary | TypeScript | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":false,"name":"Enterprise Edition E10","contactSales":false},{"free":false,"name":"Enterprise Edition E20","contactSales":false}],"freeTier":true,"sourceUrl":"https://mattermost.com","retrievedAt":"2026-10-05T11:08:02.475Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free, limited to 10,000 message history","features":["Message history search (10,000 limit)","File storage up to 5 GB total","Complete team chat solution","Hundreds of integrations","Advanced roles and permissions","Guest accounts"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Cloud plan with limited history and storage","contactSales":false,"includedLimits":{"storage":"5 GB total","messages_history":"10,000"}},{"free":false,"name":"Standard","summary":"$6.67/user/month billed annually or $8/month","features":["Unlimited search history","File storage up to 5 GB per user","Flexible permissions with custom groups","Message retention policies","Brand Zulip with your logo","Priority commercial support","Public access option"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":6.67,"period":"year","currency":"USD"},{"kind":"per_unit","unit":"seat","amount":8,"period":"month","currency":"USD"}],"description":"Full-featured cloud plan","contactSales":false,"includedLimits":{"storage":"5 GB per user"}},{"free":false,"name":"Plus","summary":"$10/user/month billed annually or $12/month","features":["All Standard plan features","File storage up to 25 GB per user","SSO with SAML (Okta, OneLogIn)","SCIM user and group sync","Custom domain","Limit user list access for guests"],"minSeats":10,"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":10,"period":"year","currency":"USD"},{"kind":"per_unit","unit":"seat","amount":12,"period":"month","currency":"USD"}],"description":"Advanced cloud plan with enhanced features","contactSales":false,"includedLimits":{"storage":"25 GB per user"}},{"free":true,"name":"Self-hosted (Open Source)","summary":"Free, open-source self-hosted","features":["Complete team chat solution with all Zulip features without limitation","100% open-source software","Retain full control over your data"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Free open-source self-hosted option","contactSales":false,"includedLimits":{}},{"free":false,"name":"Self-hosted Basic","summary":"$3.50/user/month (with $20/month first-year discount)","features":["Unlimited support","Email and chat support","SSO with SAML and Microsoft Entra ID","AD/LDAP user sync","Full compliance","Data exports","Data retention policies"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"seat","amount":3.5,"period":"month","currency":"USD"}],"description":"Commercial support plan for self-hosted deployments","contactSales":false,"includedLimits":{}},{"free":false,"name":"Self-hosted Enterprise","summary":"Contact sales for pricing","features":["Email, chat and phone support","SSO with OpenID Connect","AD/LDAP, SAML and OpenID Connect group sync","Implementation consulting","Custom feature development","Advanced deployment options"],"description":"Premium support plan for self-hosted deployments","contactSales":true,"includedLimits":{}}],"summary":"From $6.67/user/month (cloud annual), free open-source self-hosted option, or $3.50/user/month for commercial self-hosted support. Free tier available.","currency":"USD","freeTier":true,"sourceUrl":"https://zulip.com/plans/","retrievedAt":"2026-09-03T17:54:41.041Z","startingPrice":{"unit":"seat","amount":3.5,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | low | free |
| pricing.starting_price | - | `{"amount":3.5,"currency":"USD"}` |
| pricing.transparent | no | yes |
| release.cadence_days | 1 | - |
| release.history | `[{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.3-rc1","date":"2026-10-02T11:23:57Z","type":"prerelease","version":"v11.10.3-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v12.0.0-rc2","date":"2026-09-25T08:37:30Z","type":"prerelease","version":"v12.0.0-rc2"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.11.1","date":"2026-09-24T06:27:30Z","type":"stable","version":"v11.11.1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v12.0.0-rc1","date":"2026-09-18T10:58:45Z","type":"prerelease","version":"v12.0.0-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.24","date":"2026-09-16T09:55:00Z","type":"stable","version":"v10.11.24"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.2","date":"2026-09-15T07:48:24Z","type":"stable","version":"v11.10.2"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.11","date":"2026-09-15T05:06:55Z","type":"stable","version":"v11.7.11"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.11-rc1","date":"2026-09-11T12:06:09Z","type":"prerelease","version":"v11.7.11-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.9.2","date":"2026-09-15T06:26:10Z","type":"stable","version":"v11.9.2"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.11.0","date":"2026-09-07T11:26:50Z","type":"stable","version":"v11.11.0"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.11.0-rc3","date":"2026-09-07T10:37:02Z","type":"prerelease","version":"v11.11.0-rc3"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.10","date":"2026-08-26T11:53:54Z","type":"stable","version":"v11.7.10"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.11.0-rc2","date":"2026-08-25T09:15:51Z","type":"prerelease","version":"v11.11.0-rc2"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.1","date":"2026-08-24T07:07:00Z","type":"stable","version":"v11.10.1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.11.0-rc1","date":"2026-08-18T06:47:33Z","type":"prerelease","version":"v11.11.0-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.9","date":"2026-08-13T06:29:32Z","type":"stable","version":"v11.7.9"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.9.1","date":"2026-08-13T06:07:31Z","type":"stable","version":"v11.9.1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.9.1-rc1","date":"2026-08-07T09:17:30Z","type":"prerelease","version":"v11.9.1-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.8.5","date":"2026-08-13T05:45:21Z","type":"stable","version":"v11.8.5"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.8.5-rc1","date":"2026-08-07T08:38:34Z","type":"prerelease","version":"v11.8.5-rc1"}]` | - |
| reliability.status_page | yes | yes |
| security.certifications | `[{"name":"Section 508 Compliance","status":"active","evidenceUrl":"https://mattermost.com"}]` | - |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.scorecard | 7.3 | - |
| security.trust_center | https://mattermost.com/blog/trusted-device-authentication-101/ | https://zulip.com/security/ |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=mattermost-redux&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Collaboration Software)

| Capability | Mattermost | Zulip |
|---|:--:|:--:|
| **Modality** |  |  |
| Messaging | ✓ | ✓ |
| Video meetings | ✗ | ✓ |
| Whiteboard | ✗ | - |
| **Meetings** |  |  |
| Screen sharing | ✓ | ✗ |
| Recording / transcription | Recording + AI notes | - |
| **Security** |  |  |
| End-to-end encryption | - | ✓ |
| SSO / SCIM | ✓ | ✓ |
| **Access** |  |  |
| Guest / external access | ✓ | ✓ |
| **Compliance** |  |  |
| Compliance controls | ✓ | ✓ |
| **Deployment** |  |  |
| Hosting | Cloud + self-hosted | Cloud + self-hosted |
| **Scale** |  |  |
| Max participants | - | - |
| **Ecosystem** |  |  |
| App marketplace | ✓ | ✓ |
| Public API / bot framework | ✓ | ✓ |
| **Commercial** |  |  |
| Free tier | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T21:42:32.509Z. "-" = undocumented, not absent.*