Team Communication · 2026 Comparison

Mattermost vs Flock

Mattermost vs Flock: Compare pricing, features, ratings, pros, and cons. Which is better for your team in 2026? Unbiased comparison with real data.

Mattermost
Free tier
4.3
VS
Flock
Free tier
4.4
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Quick Verdict

⭐ Better Ratings
Flock
4.4/5 on G2
💰 Better Price
Tie
Similar pricing
🛠️ More Features
Mattermost
7 tracked features

Mattermost vs Flock — Feature Comparison

Feature Mattermost
Recommended
 Flock
Starting Price Free tier Free tier
Pricing Model
Freemium
Freemium
G2 Rating
4.3
4.4
Founded 2015 2014
Channels
Direct Messages
Self Hosting
Compliance
Integrations
Mobile Apps
Playbooks
To Dos
Polls
Reminders
Note Sharing
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Mattermost — Overview

Open source messaging for teams

Freemium • Free tier

Open-source, self-hostable team messaging platform with enterprise-grade security and compliance features.

✓ Pros

  • ✓Self-hostable for full data control
  • ✓Open source and transparent
  • ✓Strong security and compliance
  • ✓No vendor lock-in

✗ Cons

  • ✗Requires technical expertise to self-host
  • ✗UI feels less polished than Slack
  • ✗Smaller app marketplace
  • ✗Setup complexity
✓ Self Hosting ✓ Compliance ✓ Mobile Apps ✓ Playbooks
Try Mattermost → Full Review

Flock — Overview

Run your business faster

Freemium • Free tier

Team messaging and collaboration tool with built-in productivity features like to-dos, polls, and reminders.

✓ Pros

  • ✓Built-in productivity tools
  • ✓Affordable pricing
  • ✓Clean interface
  • ✓Good mobile apps

✗ Cons

  • ✗Smaller user base than Slack
  • ✗Fewer integrations
  • ✗Less feature-rich for enterprise
  • ✗Limited free tier
✓ To Dos ✓ Polls ✓ Reminders ✓ Note Sharing
Try Flock → Full Review

Features Both Tools Share

✓ Channels ✓ Direct Messages ✓ Integrations
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