Mattermost
Free
rated 4.7 stars
1,000,000+
downloads
About Mattermost
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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
Mattermost Screenshots
Reviews for Mattermost
JB L
12/29/2025
Do the job
Alex Denisov
12/24/2025
Great work! Please add read receipts and send voice messages. PS Impossible to use after update to version 2.0. Have all last updates for my server and my Android app. Problems: Sometimes I don't see all messages in threads Sometimes I don't see messages I've just sent Search doesn't work properly - "alex" search prompt doesn't show any results, but "Alex" does Mobile version shows that I have unread messages in some channels while all messages are read and on desktop there is no such issue
Siebe Rozendal
12/17/2025
Frequently, I can't see the contents of a channel, and I'll have to log out and log in again to make it visible. Today is the second time that that isn't enough and I have to reinstall the whole app..
Odhiambo Atieno
12/15/2025
Just perfect!
amir seifi
12/9/2025
OK
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