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Flock vs Mattermost: Pricing Comparison 2026

Side-by-side pricing comparison of Flock and Mattermost. See all plans, features, and costs at a glance.

Bottom line: Both Flock and Mattermost offer free plans. Flock has 3 pricing tiers while Mattermost has 4.

Last updated: March 16, 2026

Data compiled by Arthur Jacquemin
Updated March 16, 2026
Try Flock freeTry Mattermost free

Flock vs Mattermost: Quick Pricing Facts

FeatureFlockMattermost
Starting Price$6/moCustom pricing
Number of Plans34
Free TierYesYes
Pricing Modelfreemiumopen-source
Annual DiscountN/AN/A

Flock and Mattermost are both priced at $6/mo, making them equally accessible Communication tools. Together they offer 7 pricing plans with 60 features compared, so the best choice comes down to which features match your needs.

Both tools offer free plans, making them accessible for teams on a budget. Flock uses freemium pricing while Mattermost uses open-source pricing, which may affect your total cost at scale.

Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Communication needs.

Pricing Plans
Flock
Mattermost
Mattermost
Try it free
Tier 1
STARTER
$0/monthCheapest
Includes
  • Unlimited 1-1 & Group messages
  • 10,000 Searchable messages
  • 10 Public channels
  • 5 GB total per team
  • Single team admin
  • 1-1 Video calls
Start with STARTER
Free
$0/monthCheapest
Includes
  • Limited-use edition of Enterprise Advanced for technical evaluation
Start with Free
Tier 2
ENTERPRISE
Custom pricing
Includes
  • Organizational mapping
  • Custom on-boarding
  • Integration with internal LMS, HRMS and other systems
  • Unlimited 1-1 & Group messages
  • Unlimited Searchable messages
  • Unlimited Private & Public channels
  • 20 GB per team member
  • Active Directory Sync
  • Multiple team admins
  • Group Video calls
  • Screen Sharing
  • Single Sign-On
  • 24*7 Dedicated Support
Start with ENTERPRISE
Professional
Custom pricing
Includes
  • Channel-based collaboration
  • Messaging, file sharing, and link and file previews across device platforms
  • 1:1 audio calls and screen sharing
  • Threaded discussions
  • Core search up to 3 million posts
  • Custom branding, themes, and emojis
  • Multi-team collaboration
  • Guest accounts
  • Single sign-on
  • Professional Support
Start with Professional
Tier 3
PRO
$6/monthCheapest
$5 / year
Includes
  • Unlimited 1-1 & Group messages
  • Unlimited Searchable messages
  • Unlimited Private & Public channels
  • 10 GB per team member
  • Multiple team admins
  • Group Video calls
  • Screen Sharing
  • 24*7 Priority Support
Start with PRO
Enterprise
Custom pricing
Includes
  • Everything in Professional, Plus:
  • Agentic Platform
  • Real-time channel briefing
  • AI-enhanced Search and RAG
  • Video Integrations
  • Federated Communications
  • Workflow automation
  • Compliance export and eDiscovery automation
  • Scale to 50,000 concurrent users
  • Enterprise Support
  • U.S. Based Premier Support
Start with Enterprise
Tier 4
—
Enterprise Advanced
Custom pricing
Includes
  • Everything in Enterprise, Plus:
  • Security-Optimized Mobility
  • Mobile Data-at-Rest Encryption
  • Zero Trust Security
  • Dynamic Attribute Based Access Controls
  • Automatic channel translations
  • Scale to 200,000 concurrent users
  • Dedicated write-through caching
  • Air-gapped Deployment
  • Mobile Screenshot Prevention
  • Mission Partner Environments
Start with Enterprise Advanced

Swipe to compare plans →

Flock

Team messaging and collaboration platform

View all Flock plans

Mattermost

Open-source self-hosted team messaging platform

View all Mattermost plans
Our Pick

Mattermost

Mattermost offers a free plan, offers 4 tiers vs 3.

Based on pricing data only. Review the full comparison below for your specific needs.

Best value: Mattermost

Try Mattermost free

Which Should You Choose?

Choose Flock if:

  • •You prefer Flock's free tier features—Unlimited 1-1 & Group messages, 10,000 Searchable messages
  • •You prioritize Flock's user experience and interface over price (both tools are similarly priced)
  • •You prefer Flock's freemium model with its 3-tier structure

Choose Mattermost if:

  • •You prefer Mattermost's free tier features—Limited-use edition of Enterprise Advanced for technical evaluation
  • •You need 4 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
  • •You want more features built-in—Mattermost offers 6 additional features across its plans

Both Flock and Mattermost offer free plans [1], eliminating cost barriers for evaluation. This means you can test both tools thoroughly with your actual workflows before any financial commitment. The free tiers differ in scope: Flock includes 6 features, while Mattermost includes 1 features. Evaluate which free tier matches your evaluation needs before deciding to upgrade. Your best approach is to activate both free trials and evaluate which tool's workflow, integrations, and user experience align better with your team's needs before committing to paid plans.

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Frequently Asked Questions: Flock vs Mattermost

How many pricing plans does Flock have vs Mattermost?
Flock offers 3 pricing plans, while Mattermost offers 4 plans. More plans typically means more flexibility to match your exact needs and budget.
Does Flock or Mattermost offer a free plan?
Yes, both Flock and Mattermost offer free plans. Compare the feature limits of each free tier to see which better fits your use case before upgrading.
Can I save money by paying annually for Flock or Mattermost?
Both Flock and Mattermost offer annual billing options. Check each plan's yearly pricing for potential savings compared to monthly billing.
Does Flock or Mattermost offer custom enterprise pricing?
Yes, both Flock and Mattermost offer custom enterprise pricing tiers with quote-based pricing. Contact each vendor for a tailored quote.
What pricing models do Flock and Mattermost use?
Flock uses a freemium pricing model, while Mattermost uses open-source pricing. The right model depends on your team size and usage patterns.
How do Flock and Mattermost compare for Communication?
Both Flock and Mattermost are Communication tools. Flock offers 3 plans starting at $6/mo, while Mattermost offers 4 plans starting at Custom pricing. Review the feature breakdowns above to see which better fits your Communication needs.

Sources

  1. Flock Official Pricing— Vendor pricing page
  2. Mattermost Official Pricing— Vendor pricing page

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