Mattermost
star
20.3K reviewsinfo
PEGI 3
info
1M+
Downloads
About this app
Requires Mattermost Server v11.7.0+. 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
Secure, self-hosted workplace messaging
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 partiesLearn more about how developers declare sharing
- This app may collect these data typesPersonal info, Messages and 3 others
- Data is encrypted in transit
- Data can’t be deleted
Ratings and reviews
19.7K reviews
Farhood Etaati
- Flag inappropriate
August 9, 2026
The app gets unusable after a couple of weeks and its data needs to be cleared for it to work again. It has a serious memory leak issue, probably related to all the data it sends to its sentry servers that cannot be disabled, which is completely baffling for an "open source" app.
2 people found this review helpful
Richie Keith
- Flag inappropriate
August 14, 2026
the most important channel I monitor does not update with new unread messages. it will show in bold that there are unread messages, but the latest posts in the channel are from over a day ago. useless as a mobile app.
Catalin Morariu
- Flag inappropriate
- Show review history
July 18, 2026
On Samsung phones (I checked on the Fold7 and S22), in the version from July 16, 2026, installed from the Google Play Store, replying in threads does not work when the 'Collapse reply threads' option is turned on. Please note that I installed the latest available version (2.41.3) from APKPure, and that one works correctly. Mattermost server version is 11.9.0
1 person found this review helpful
What’s new
Requires Mattermost server v11.7.0+ to avoid incompatibilities and crashes. Requires Android 7.0 or higher.
- Added support for reporting client session attributes to the server.
- Classification markings now load via a single property fields request on servers running v11.10+ (with backward-compatible fallback).
- Improved Android cold start by decrypting credentials only for known servers instead of listing the entire Keystore.
- Added various bug fixes.
- Added support for reporting client session attributes to the server.
- Classification markings now load via a single property fields request on servers running v11.10+ (with backward-compatible fallback).
- Improved Android cold start by decrypting credentials only for known servers instead of listing the entire Keystore.
- Added various bug fixes.
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
