# Mattermost vs Zulip

**Leader by Vioscale score:** Zulip

| Attribute | Mattermost | Zulip |
|---|---|---|
| **Vioscale score** | 59.2 (66% (medium)) | 70.8 (73% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 371 | - |
| adoption.github_stars | 38,909 | - |
| deployment.options | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` |
| description.long | Mattermost is an open-source messaging and collaboration platform designed for organizations requiring data sovereignty, self-hosting control, and mission-critical availability. It integrates with external tools and workflows, supports high-availability deployments, and serves government, defense, and enterprise customers needing secure, compliant operations. | Zulip is an open-source team chat platform featuring topic-based threading to organize conversations. It supports both synchronous and asynchronous workflows and offers flexible deployment options including cloud hosting or self-hosted infrastructure. |
| features.capabilities | `{"hosting":"both","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"whiteboard":false,"screen_sharing":false,"video_meetings":false,"app_marketplace":true,"compliance_controls":true}` | `{"hosting":"both","sso_scim":true,"free_tier":true,"messaging":true,"api_access":true,"e2e_encryption":true,"screen_sharing":false,"video_meetings":true,"app_marketplace":true,"compliance_controls":true,"guest_external_access":true}` |
| integrations.count | 14 | 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":"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"}]` |
| language.primary | TypeScript | - |
| market.availability | `{"hqCountry":"US","primaryMarkets":["US","CA","GB","EU","JP"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"ios":true,"web":true}` | `{"cli":true,"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Open Source","description":"Self-hosted open-source version"},{"free":false,"name":"Enterprise E10","description":"Commercial enterprise version","contactSales":false},{"free":false,"name":"Enterprise E20","description":"Commercial enterprise version","contactSales":false}],"summary":"Free open-source tier available; commercial E10 and E20 enterprise editions","freeTier":true,"sourceUrl":"https://mattermost.com","retrievedAt":"2026-08-14T13:38:41.844Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Zulip Cloud Free","summary":"Free","features":["10,000 messages search history","5GB total file storage","Complete team chat solution","Hundreds of integrations","Advanced roles and permissions","Guest accounts"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"storage":"5GB total","message_search_history":"10,000 messages"}},{"free":false,"name":"Zulip Cloud Standard","summary":"$6.67/user/month billed annually or $8/month","features":["Unlimited search history","5GB per user storage","Custom permission groups","Message retention policies","Custom branding","Priority support","Public access option"],"components":[{"kind":"per_unit","unit":"seat","amount":6.67,"period":"year","currency":"USD"},{"kind":"per_unit","unit":"seat","amount":8,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"storage":"5GB per user","message_search_history":"unlimited"}},{"free":false,"name":"Zulip Cloud Plus","summary":"$10/user/month billed annually or $12/month (minimum 10 users)","features":["All Standard features","25GB per user storage","SAML SSO (Okta, OneLogIn)","SCIM sync","Custom domain","Guest list visibility controls"],"minSeats":10,"components":[{"kind":"per_unit","unit":"seat","amount":10,"period":"year","currency":"USD"},{"kind":"per_unit","unit":"seat","amount":12,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"storage":"25GB per user"}},{"free":true,"name":"Self-hosted Free","summary":"Free","features":["All Zulip features","Mobile notifications (limited)","100% open-source"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Self-hosted Basic","summary":"$3.50/user/month, $20/month off first year","features":["All features","Unlimited mobile notifications","Supports open-source development"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"seat","amount":3.5,"period":"month","currency":"USD"},{"kind":"fixed","amount":-20,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Self-hosted Business","summary":"$6.67/user/month billed annually or $8/month (minimum 25 users), $20/month off first year","features":["All features","Email and chat support","SSO (SAML, Entra ID)","AD/LDAP sync","Configurable guest access","Compliance controls","Data exports"],"minSeats":25,"components":[{"kind":"per_unit","unit":"seat","amount":6.67,"period":"year","currency":"USD"},{"kind":"per_unit","unit":"seat","amount":8,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Self-hosted Enterprise","summary":"Contact sales","features":["All features","Phone, email and chat support","OpenID Connect SSO","SCIM sync","Implementation consulting","Custom development","Advanced deployment options"],"contactSales":true}],"summary":"From free to $12/user/month (Cloud Plus). Self-hosted from $3.50/user/month.","currency":"USD","freeTier":true,"sourceUrl":"https://zulip.com/plans/","retrievedAt":"2026-08-13T22:40:25.808Z","startingPrice":{"amount":-20,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | freemium |
| pricing.price_level | low | free |
| pricing.transparent | no | yes |
| release.cadence_days | 1 | - |
| release.history | `[{"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"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.0","date":"2026-08-04T09:43:25Z","type":"stable","version":"v11.10.0"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.0-rc3","date":"2026-08-04T08:18:23Z","type":"prerelease","version":"v11.10.0-rc3"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.23","date":"2026-08-13T05:23:26Z","type":"stable","version":"v10.11.23"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.23-rc1","date":"2026-08-07T07:57:15Z","type":"prerelease","version":"v10.11.23-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.8","date":"2026-07-31T09:56:39Z","type":"stable","version":"v11.7.8"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.0-rc2","date":"2026-07-30T06:32:31Z","type":"prerelease","version":"v11.10.0-rc2"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.10.0-rc1","date":"2026-07-17T12:39:50Z","type":"prerelease","version":"v11.10.0-rc1"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.8.4","date":"2026-07-17T07:13:55Z","type":"stable","version":"v11.8.4"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.7.7","date":"2026-07-17T06:46:06Z","type":"stable","version":"v11.7.7"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v10.11.22","date":"2026-07-17T05:24:43Z","type":"stable","version":"v10.11.22"},{"url":"https://github.com/mattermost/mattermost/releases/tag/v11.9.0","date":"2026-07-08T06:02:46Z","type":"stable","version":"v11.9.0"}]` | - |
| reliability.status_page | yes | yes |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | - | yes |
| security.scorecard | 7.3 | - |
| 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 | - | - |
| **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: Vioscale. Generated 2026-09-01T15:18:08.972Z. "-" = undocumented, not absent.*