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Mattermost

Mattermost

by Mattermost, Inc.

5.6K ratings
491 reviews
💼 Business
Free

Details

  • Released
  • Updated
  • July 10, 2017
  • July 17, 2026

Features

Developer

Mattermost, Inc.
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Mattermost screenshot #1 for iPhone
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Mattermost screenshot #3 for iPhone
Mattermost screenshot #4 for iPhone
iphone
ipad
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Reviews summary↘︎
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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 5.6K 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
+2

What's New in Mattermost

2.42.1

July 17, 2026

Devices with iOS 16.0+ are required. Server version v10.11.0 or later is required. - Fixed an issue when logging in with numeric only IDs.

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User reviews

Most RecentHighest RatedLowest Rated

PaylabIDとの連携ログインは不可？

こちらのアプリからPaylabIDの連携を利用してログインしたいのだが、webブラウザのログイン画面では存在する選択肢がこちらには無くてどのようにログインすれば良いかわからない。
りょうーたりょうーた

Response from developer

Thank you, appreciate your feedback. Would you like to contribute this in the feature idea forum https://mattermost.uservoice.com/forums/306457-general/?

Фото профиля

Фото в моем профиле именно в приложение стало отображается с артефактами, хотя в веб-версии всё в порядке с фото, фото установлено в профиле было давно
______..~<.______..~<.

Response from developer

Hi there, thank you for the feedback!

Худшее приложения для коммуникации на работу

Постоянно лагает- не могу написать пост или сообщение, неудобный интерфейс
Уведомления приходят отовсюду
Нету возможности автоматической подсказки названия команд - нужно запоминать и писать полностью
Игорь0977Игорь0977

Плохое качество работы приложения

Ужасно работает приложение, еле загружается фото, часто ошибку выдает и вылетаешь из приложения
23zcinica23zcinica

Great

Mattermost is great
rudypamelarudypamela
See 486 more reviews

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.