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Mattermost

Mattermost

by Mattermost, Inc.

5.7K ratings
497 reviews
💼 Business
Free

Details

  • Released
  • Updated
  • July 10, 2017
  • August 6, 2026

Features

Developer

Mattermost, Inc.
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iphone
ipad
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About

This platform enables secure messaging, file sharing, and workflow automation for critical industries. It offers voice calls, project management, and enterprise mobility management for enhanced collaboration and data control.

✓Secure messaging, file, and link sharing
✓1:1 and group voice calls
✓Workflow automation with Playbook
✓Enterprise Mobility Management support
✓Private mobility with ID-only push notifications
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What users say

Summarized from real user reviews of Mattermost. Based on 5.7K reviews and a 4.8/5 average, it highlights the 5 positives and 5 negatives reviewers mention most about this Business app.

Positive things

  • 🚀Fast and responsive
  • 🔒Secure self-hosted solution
  • 👍Great Slack alternative
  • 💡Customizable and extensible
  • 🧲Integrates well with other tools

Negative things

  • 🐛Buggy and unstable
  • 🔑Frustrating login/authentication issues
  • 🔔Inconsistent or missing notifications
  • 🖼️Trouble with image/file uploads
  • 🕰️Slow performance and lag
See all reviews
+1

What's New in Mattermost

2.42.3

August 6, 2026

Devices with iOS 16.0+ are required. Server version v10.11.0 or later is required. - Fixed potential causes of rendering a channel empty. - Fixed an issue where Enter did not work on channels.

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User reviews

Most RecentHighest RatedLowest Rated

iOS app appears to barely be on life support

This app worked great on my ipad with a physical keyboard cover for years. The past few months though more and more UI and input bugs have crept in with every release and now it's just a hair away from being completely unusable. Devs seem to be ignoring these bug reports too. From the commit logs it looks like they only care about Android now. I can't recommend this app for iOS
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anomaly256anomaly256

Update broke threads

Latest update broke threads. Now unusable on iOS
Privacy42205341Privacy42205341

Не работают треды (обсуждения)

После обновления до последней версии перестали работать треды. Показывает пустой экран.
Кузя-арбузяКузя-арбузя

Auto Dark Mode

Pls add auto switching Light/Dark Mode following the iOS
GubbarpGubbarp

Barely functioning

Newest gift is a completely blank screen. Cannot access messages or anything.
Frederick BaumanFrederick Bauman
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Developer apps

Mattermost Classic
Mattermost Classic

by Mattermost, Inc.

💼 Business

(13)

Free
See developer apps

User experience

🐞

Reported Bugs

5 issues

Crashes on startup

Bug

Unread message indicators not working

Bug

Keyboard issues on iPad/desktop

Bug

Compatibility problems with iOS 17+

Bug

Randomly logs users out

Bug
✨

Requested Features

5 requests

Add voice messaging capability

Feature

Improve multi-server support

Feature

Integrate end-to-end encryption

Feature

Introduce iPad-optimized layout

Feature

Provide more customization options

Feature

FAQ

What does Mattermost do?

Mattermost is a collaborative workflow platform designed for secure messaging, file sharing, workflow automation, and project management. It runs on-premises and in private clouds, offering full data and operational control.

What are the key features of Mattermost?

Key features include secure sharing of messages, files, and links; 1:1 and group voice calls; workflow automation with Playbook; and Enterprise Mobility Management support for secure data handling.

How much does Mattermost cost?

The provided information indicates the app is free to use. However, it requires a URL for a Mattermost server, which may have associated deployment and operational costs depending on your chosen hosting solution.

What are the system requirements for Mattermost?

To use this app, you need a URL for a Mattermost server. The app itself requires Mattermost Server v10.11.0+; older server versions may lead to connection issues or unexpected behavior.

Who is the target audience for Mattermost?

This platform is specifically designed for organizations in defense, intelligence, security, and critical infrastructure sectors that require a highly secure and controlled environment for team communication and workflow management.