A corporate messenger that belongs to you
Your team's messages, calls and files stay on your company's own servers — not on someone else's platform. Invite-only access.
Everything your team needs
Chats and groups
Direct chats, groups, photos and documents, replies, forwarding and reactions. Contacts via QR code or with consent.
Calls and conferences
Voice and video calls, group calls and video conferences with screen sharing.
Voice with transcripts
Voice messages are transcribed automatically, and dictated text can be sent as a regular message.
MG assistant
A built-in AI assistant on your own cluster: answers questions, searches the web, sets up your profile, calendar and invites for you.
Selina cloud
Shared files and folders with fine-grained access rights, file links and public publishing.
Calendar and timesheet
Holidays, birthdays, events and reminders. Electronic timesheet: “at work” in one tap and Excel export.
SSH terminal
Connect to servers right from the messenger: tabs, saved credentials, Ctrl/Esc keys on mobile.
Reliability
A standby server takes over automatically if the main one goes down — no messages are lost.
Under your control
Your own servers
Data is stored on company servers. No ads, no third-party analytics.
Invite-only
Sign-up requires an invite code. Administrators manage roles and permissions.
Encrypted connections
Everything travels over TLS; calls use secure WebRTC (DTLS-SRTP).
Redundancy
Primary and standby servers in different countries with automatic failover and return.
Download Mesguard
One account on all your devices. On a computer you can sign in by scanning a QR code with your phone.
Android
Android 8 or later. Updates itself.
Version
How to install
- Download the file and open it from Downloads.
- Allow installing from this source if your phone asks.
- If Play Protect warns you — “More details” → “Install anyway”.
- Sign up with your invite code.
iPhone and iPad
Web app with notifications, iOS 16.4 or later.
Open in SafariHow to install
- Open the link in Safari.
- Tap Share → “Add to Home Screen”.
- Launch Mesguard from the Home Screen and allow notifications.
Windows
Windows 10 and 11. Updates itself.
Version
How to install
- Run the installer — the app installs and opens.
- Sign in with a QR code from your phone or with your username and password.
macOS
macOS 11 or later.
Version
How to install
- Open the archive and drag Selina Mesguard to Applications.
- On first launch: System Settings → Privacy & Security → “Open Anyway”.
- Allow microphone and camera access.
Got an invitation? Open the link from it or enter the invite code when signing up.