Flock vs Zulip
No leader: the top candidate Flock has only 0.30 confidence (low), below the 0.35 needed to declare a winner. The attribute-by-attribute breakdown below, with a source and date on every value, is the honest way to compare them.
Capabilities
Feature-by-feature on the axes that matter for team chat. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Flock
A team communication tool that consolidates messaging, video calling, file sharing, and task management features into one shared workspace to enable coordinated work across departments.
Zulip
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.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Flock
Free plan available; Pro from $2/user/mo introductory pricing.
- FreeFree
- Unlimited messages and channels
- 1-1 and group video calling
- File sharing
- Up to 5 third-party integrations
- Message search
- Pro$2/user/mo (introductory pricing; regular $3/user/mo)
- Advanced admin controls
- Guest member support
- Video calling up to 20 participants with unlimited duration
- Unlimited integrations
- Custom fields
- +1 more
Zulip
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.
- FreeFree
- Message history search (10,000 limit)
- File storage up to 5 GB total
- Complete team chat solution
- Hundreds of integrations
- Advanced roles and permissions
- +1 more
- Standard$6.67/user/month billed annually or $8/month
- Unlimited search history
- File storage up to 5 GB per user
- Flexible permissions with custom groups
- Message retention policies
- Brand Zulip with your logo
- +2 more
- Plus$10/user/month billed annually or $12/month
- All Standard plan features
- File storage up to 25 GB per user
- SSO with SAML (Okta, OneLogIn)
- SCIM user and group sync
- Custom domain
- +1 more
- Self-hosted (Open Source)Free
- Complete team chat solution with all Zulip features without limitation
- 100% open-source software
- Retain full control over your data
- Self-hosted Basic$3.50/user/month (with $20/month first-year discount)
- Unlimited support
- Email and chat support
- SSO with SAML and Microsoft Entra ID
- AD/LDAP user sync
- Full compliance
- +2 more
- Self-hosted EnterpriseContact sales
- Email, chat and phone support
- SSO with OpenID Connect
- AD/LDAP, SAML and OpenID Connect group sync
- Implementation consulting
- Custom feature development
- +1 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- Asana
- Trello
- Jira
Flock
- Asana
- Trello
- Jira
Zulip
- Slack
- Microsoft Teams
- Discord
- Mattermost
- Rocket.Chat
- Matrix
- IRC
- GitHub
- GitLab
- Bitbucket
- Linear
- Basecamp
- Jenkins
- CircleCI
- GitHub Actions
- Travis CI
- TeamCity
- Heroku
- Netlify
- Docker
- Kubernetes
- Ansible Tower
- Puppet
- +36 more
Flock or Zulip: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.