Mattermost

4.7
10.8K reviews
500K+
Downloads
Content rating
Everyone
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About this app

Requires Mattermost Server v8.1.0+. 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
Updated on
Feb 16, 2024

Data safety

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
10.5K reviews
Scotty Blechman
January 23, 2024
Major update about 1-2 years ago that included the UI revamp ruined this app; often so slow it's near unusable. Whatever was done for the UI revamp came at a severe cost to performance. Since I was asked for details on what's slow: Opening app. Switching channels. Opening menus. Typing. Clicking send button. Messages actually getting sent. Searching. Clicking any other UI buttons. Loading new messages. Reinstall and cache clear don't help. Re: keyboard - not using Samsung device, it's Google
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Mattermost
January 24, 2024
Hi there, the remaining things to check is whether you are on the latest server version, and whether you see any errors either in the server's or in the mobile app's logs.
Lisa Willis
December 27, 2023
Extremely slow. I've had this app for awhile now (a couple years now) due to work and it's horrible. If they actually get the app running smoother and faster I would be shocked. Also there doesn't seem to be a way to set it up so you can't receive messages when you're not working. I'm on vacation and still getting work related messages (I'm hourly so I shouldn't even be dealing with work related issues while I'm not on the clock).
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Mattermost
January 2, 2024
Hi there, can you help share more details on the issue that you're experiencing? Please open a new issue at https://github.com/mattermost/mattermost-mobile/issues.
Iain Davidson
November 5, 2023
awesome stuff. especially appreciate the open source and community supported versions. update: oct'2023 App frequently refuses to recognize input needed from keyboard. Edit Save button sometimes doesn't show. At least daily, I have to kill app and reload. Draft option doesn't show, so I have to hunt for draft posts through all channels and threads.
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Mattermost
November 6, 2023
Hi there, what Mattermost server version are you on? Feel free to open a new issue at https://github.com/mattermost/mattermost-mobile/issues with more details.

What's new

Requires Mattermost server v8.1.0+ to avoid incompatibilities and crashes. Requires Android 7.0 or higher.

- Calls: Implemented an alert that shows an error to user in case they leave (or are removed from) a channel with an active call.
- Calls: Updated the host and participant notices to include transcriptions, if enabled.
- Calls: Added transcription subtitles support to Calls recordings.
- Added various bug fixes.