- Software comparison -

Flock VS Mattermost

Compare those two business instant messaging apps. Which one is the best for you: Flock or Mattermost? Discover our detailed comparison with +50 criteria (pricing, features...).


Discover how Flock compare with Mattermost

Enjoy a detailed comparison table about features and pricing. More than 50 criteria.


G2 Score4,4/54,2/5
Market SegmentGlobalTech
Website Linkhttps://www.flock.com/https://mattermost.com/

Business model

Entry Level Price$4.5/user/month$10/user/month
Free Trial30 days
Free Version
Support add-ons

Chat features

File Sharing
Voice messages
Gif And Emoji

Video call features

1-1 Video Call
Group video callsUp to 20
Screen Sharing
Audio Call
Breakout rooms
Participant Permissions
Subtitles & Translations

Document features

Online Document Editing
Document Viewer
Documents management


Roles Management
Graphic Personalization
Custom Domain Name
Contact Management
Workspace And User Activity

Other features

SearchMessages onlyGlobal search
Multiple Workspaces
Branding Removal
User Profile
Storage5Gb to 20Gb/userUnlimited
Task Management
"Do not disturb" mode


Training (On-Site, Online Live, Docs, Videos)
Help Ressources (Customer Service, Email, Faq, Forum, Knowledge Base, Chat, Phone)
Training Webinars
Dedicated CSM

Tech specifications

Mobile App
Web App
Desktop App
Integrations & API
SAML/SSO Authentication
End-to-end encryption
Two-factor authentication
Data & Users ImportFrom Slack, Hipchat or StrideTasks import

Why choose Flock or Mattermost?

Flock has a higher G2 Score than Mattermost, with a score of 4.4/5 compared to 4.2/5. Flock is also in the global market segment, while Mattermost is in the tech market. Flock has an entry-level price of $4.5/user/month, while Mattermost's entry-level price is $10/user/month. Flock offers a free trial of 30 days, while Mattermost doesn't offer a free trial, but both have a free version. Mattermost offers support add-ons, while Flock doesn't have any add-ons.

In terms of features, both Flock and Mattermost offer roles management, custom domain name, chat, file sharing, mentions, groups/channels, GIF and emoji, 1-1 video call, screen sharing, audio call, and "Do not disturb" mode. However, Mattermost offers more advanced features such as group video calls (up to 20 participants), threads, multiple workspaces, unlimited storage, task management, two-factor authentication, and the ability to import tasks. On the other hand, Flock offers notes-taking, participant permissions, and training resources, which Mattermost doesn't have.

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What is Flock?

Flock is a team collaboration and communication platform. It offers messaging, video conferencing, file sharing, and task management features. Flock is designed for small to medium-sized businesses and aims to increase team productivity and efficiency.

What is Mattermost?

Mattermost is an open-source team collaboration platform that offers messaging, file sharing, and video conferencing features. It is designed for enterprise-level organizations and offers end-to-end encryption and compliance and auditing capabilities.

With its focus on security and customization, Mattermost offers a flexible and scalable solution for teams looking for a self-hosted collaboration platform. It integrates with popular tools such as Jira, GitHub, and Salesforce, and offers mobile apps for iOS and Android devices.