TesseractYour team's conversations, in one calm place.
Atrium is Tesseract's communicator: workspaces, channels, direct messages and threads, with AI that answers questions and catches you up on what you missed. Free, as its own app or built into Tesseract.
- Free, no subscription
- iPhone and Android coming soon
- Needs a Tesseract account
Already using Tesseract? It's built in. Get Tesseract
Everything a team talks through, in one place.
- Workspaces and channelsA workspace for each team, with channels for each topic and forums for longer discussions.
- Messages and threadsDirect messages and group chats of up to nine, threads that keep the channel tidy, mentions and reactions.
- Ask and Catch me upAsk a question about any conversation, or get a short summary of what you missed.
- SearchFind any message across your channels and conversations.
- Guests and invite linksInvite people by email, or share a link to bring someone into a workspace.
- Bots and webhooksPost to channels from your own tools through the bot API and incoming webhooks.
Share work the way you share a Google Doc.
Post a canvas into a conversation and everyone in it can open it. Or choose exactly who sees it, and what they may do.
- Restricted, your team, or anyone with the link
- Viewer, commenter or editor for each person
- Add people by account or email
Viewers see changes when the canvas refreshes, not live as you type.
Back from a day off? Catch up in a minute.
“Catch me up” turns a long channel into a short summary. “Ask” answers a question from what was actually said, so nobody has to scroll back for the decision.
Talk it through, then get it in writing. Beta
Start a huddle with voice, video and screen sharing, right from a channel. When it ends, a written summary is posted for everyone who missed it.
Huddles are in beta while they roll out.
Atrium in your pocket, with your assistant in it.
iPhone and Android Coming soon
Atrium on your phone, with notifications, so your team and your assistant can reach you anywhere.
Your personal assistant Coming soon
Message your own Tesseract assistant in Atrium like any teammate: ask it for things, get your morning brief, and approve what it is about to send. It will also answer you on Telegram, WhatsApp, Slack, Discord, Signal, Matrix, Mattermost, email and phone calls.
Download Tesseract Atrium
Free, with your Tesseract account. Version 0.11.29. It is also built into Tesseract.
Not sure which one? Macs from 2020 on are Apple silicon; most Windows and Linux PCs are x64.
- MacApple silicon (M1 and later)
- MacIntel
- Windowsx64, portable app
- WindowsARM, portable app
- Linuxx86-64 AppImage
- LinuxARM AppImage
All files and release notes: atrium-v0.11.29. Windows builds are portable apps: download and run them. New versions are posted on this page.