Mattermost
Mattermost, Inc. Business iPhoneiPadiPod touch
Mattermost is a free Business app for iPhone and iPad by Mattermost, Inc. Rated 4.8/5 from 5,646 ratings. Requires iOS 18.0. Updated October 15, 2026.
- Rating
- 4.8
- 5.6K ratings
- Price
- Free
- on the App Store
- Size
- 94 MB
- Age 4+
- Updated
- Oct 15
- 2026 · v2.45.0
Screenshots
About Mattermost
Requires Mattermost Server v11.7.0+. Older servers may not be able to connect or have unexpected behavior. ------- Mattermost is the leading collaborative workflow platform for defense, intelligence, security, and critical infrastructure. The platform runs on-premises and in private clouds, delivering secure messaging, file sharing, workflow automation, audio/screenshare, and project management—all with full data and operational control. - Securely share messages, files, and links across from your preferred mobile devices. - Start 1:1 and group voice calls with a single click without leaving Mattermost. - Keep critical workflows moving forward with Playbook. - Get the message out without having to manage every endpoint with Enterprise Mobility Management (AppConfig) support. - Private mobility with ID-only push notifications to keep sensitive data protected while keeping stakeholders informed. To use this app, you need a URL for a Mattermost server. ------- Deploy your own server: https://docs.mattermost.com/guides/deployment.html Terms of Service: https://mattermost.com/terms-of-service/ Contribute to the project: https://github.com/mattermost/mattermost-mobile
Ratings & reviews
4.8
5.6K ratings
What’s new
Version 2.45.0 · Updated October 15, 2026
Devices with iOS 18.0+ are required. Server version v11.7.0 or later is required. - Improved the Direct Message call experience to behave more like a native phone call. - Added tappable tel: links for phone numbers in posts, which open the device calling app. - Added support for the automatic cache cleanup setting provided by the server, performing rolling cleanups of cached content to prevent it from accumulating. - Added collapse and expand all checklists, and task filtering by state and assignee, to playbook runs. - Updated onboarding and server connection welcome messaging. - Updated timezone data so mobile timestamps reflect 2026 changes in Alberta, Northwest Territories, Morocco, and Western Sahara. - Fixed an issue where channel links ending in a channel ID failed to open. - Fixed an issue where urgent mention badges used normal mention colors in the channel list. - Fixed an issue where pasting a full server URL containing a path, such as a channel link, into Add Server showed a confusing error instead of connecting. - Fixed an intermittent issue where answering an incoming call from the iOS lock screen immediately disconnected. - Fixed an issue where the tool approval user interface briefly offered Accept/Reject for AI tool calls configured to run automatically, which could race with server-side auto-execution. Interrupted auto-run tool rounds now show a Run tools option instead of approval buttons. - Fixed an issue where session attributes always reported a VPN as active and sent an incorrect client IP address. - Fixed agent tool approvals that could fail to submit or lose their buttons after an error. Added support for agent questions (AskUserQuestion). Fixed agent replies that could stay in a generating state after the app reconnected, or show no text when the conversation could not be loaded. - Fixed an issue where adding a link bookmark failed with "Could not save bookmark" when the page title was longer than 64 characters.
App privacy
The developer, Mattermost, Inc., reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Analytics, App Functionality
Alternatives to Mattermost
Looking for apps like Mattermost? Here are 6 similar apps on the App Store. The highest rated is Nextcloud Talk (4.6/5), and all 6 are free to download.
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Mattermost | 4.8 / 5 (5,646 ratings) | Free | October 15, 2026 | |
| P1 ChatOps | 2.0 / 5 (23) | Free | May 29, 2026 | Compare |
| Rocket.Chat | 4.4 / 5 (3,747) | Free | Oct 16, 2026 | Compare |
| Element Classic | 3.3 / 5 (590) | Free | Sep 28, 2026 | Compare |
| Tesla One | 3.0 / 5 (307) | Free | Oct 12, 2026 | Compare |
| Nextcloud Talk | 4.6 / 5 (439) | Free | Sep 25, 2026 | Compare |
| Hypori | 3.3 / 5 (134) | Free | Sep 23, 2026 | Compare |
Compare Mattermost with the top alternatives: ratings, updates, ASO score and keyword gaps →