Mattermost
4.7star
20.1K reviews
Rated for 3+
info
1M+
Downloads
About this app
Requires Mattermost Server v10.11.0+. Older servers may not be able to connect or have unexpected behavior.
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Mattermost is secure workplace messaging from behind your firewall.
- Discuss topics in private groups, one-to-one or team-wide
- Easily share and view image files
- Connect in-house systems with webhooks and Slack-compatible integrations
To use this app, you need a URL for a Mattermost server.
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Host your own server: https://about.mattermost.com/download
Terms of Service: http://about.mattermost.com/terms/
Contribute to the project: https://github.com/mattermost/mattermost-mobile
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Mattermost is secure workplace messaging from behind your firewall.
- Discuss topics in private groups, one-to-one or team-wide
- Easily share and view image files
- Connect in-house systems with webhooks and Slack-compatible integrations
To use this app, you need a URL for a Mattermost server.
-------
Host your own server: https://about.mattermost.com/download
Terms of Service: http://about.mattermost.com/terms/
Contribute to the project: https://github.com/mattermost/mattermost-mobile
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 3 others
Data is encrypted in transit
Data can’t be deleted
Ratings and reviews
4.7
19.6K reviews
Andrii Kovalevskyi
- Flag inappropriate
May 27, 2026
I like the product so much and i think it will become me personal messanger with my agents. 1 thing that is annoying me - the app starting sometimes so long - about 10 seconds. So webwersion is much faster then it make app just usefull . guys please make the app startup faster. Thank you!
4 people found this review helpful
Mattermost
May 27, 2026
Thank you for the feedback, would you be able to help share reproduction steps and your Mattermost server version? Feel free to open a new issue with details at https://github.com/mattermost/mattermost-mobile/issues.
SOUMYANANDA GOSWAMI
- Flag inappropriate
February 2, 2026
Glitches all over with the latest update. When I click on a particular notification (threaded convo etc), the app will remain in that view with no way of going back to the default view showing all groups. So right now I am stuck in a viewing a single channel, unable to go back to any other channel/group.
1 person found this review helpful
Mattermost
February 2, 2026
Thank you for the feedback, would you be able to help share reproduction steps and your Mattermost server version? Feel free to open a new issue with details at https://github.com/mattermost/mattermost-mobile/issues.
Louis-Gabriel ZAITI
- Flag inappropriate
May 24, 2026
Really useful for communication in an NGO, NPO But there are some issues with the image sharing system, it always gets an IO exception. otherwise keep up the good work guys !! 💪🏼👍🏼
Mattermost
May 25, 2026
Thank you for the feedback, would you be able to help share reproduction steps and your Mattermost server version? Feel free to open a new issue with details at https://github.com/mattermost/mattermost-mobile/issues.
What’s new
Requires Mattermost server v10.11.0+ to avoid incompatibilities and crashes. Requires Android 7.0 or higher.
- Fixed a random crash on Android that occurred while using the keyboard.
- Fixed a random crash on Android that occurred while using the keyboard.
App support
About the developer
Mattermost, Inc.
mm-gpc@mattermost.com
2100 Geng Rd Ste 210
Palo Alto, CA 94303
United States
+1 519-212-4794
