macOS
StablemacOS 12 or later, on Apple Silicon (M1 or later) or Intel.
Drag Capy into Applications. The first time, open it from System Settings → Privacy & Security → Open Anyway (it's signed but not notarized). After that it updates itself.
Downloads
Download Capy for your computer. In beta.
v1.0.10
LatestBetaReleased October 23, 2026
Windows
UnstableWindows 10 (22H2) or later, 64-bit.
- Download Capy’s certificate. Open the certificate and choose Install Certificate.
- Choose Local Machine, then place it in the Trusted People store.
- Open the .msix file and choose Install. Windows only needs the certificate once. Already have Capy? Install over it: never remove it first, that deletes what's on this computer.
Linux
UnstableA 64-bit distribution on x64 or ARM64. Allow the file to run (right-click → Properties → Permissions), then open it: Capy installs itself in your app menu. If it doesn't open on Ubuntu 22.04 or later, install libfuse2: sudo apt install libfuse2 (libfuse2t64 on Ubuntu 24.04).
Open a terminal and paste this once. It expects the file in Downloads. Capy then adds itself to your app menu: from then on, open it from there, and it updates itself.
cd ~/Downloadsf=Capy-linux-$([ "$(uname -m)" = x86_64 ] && echo x64 || echo arm64).AppImagechmod +x "$f" && "./$f"
If it doesn’t open and the terminal mentions FUSE (Ubuntu and Debian), install it and try again.
sudo apt install libfuse2Windows and Linux are first test builds: they install and update themselves like the Mac app, but few people have used them yet. Tell us how they run.
What's new
- Calls take up to 16 people at once. When one is full, Join says so, and you can join as soon as someone leaves
- Calls adapt to your connection: video starts lower and climbs while the link is good, backs off when it isn't, and the sound waits a little for voices that arrive late. The connection signal fits long distances, so a far call that sounds fine no longer shows red
- Capy keeps reconnecting to the devices of the people in your rooms, so after a restart or between two calls it doesn't have to find them again
- Nobody has to watch a shared screen or a presented PDF: minimize it to a chip in the call's header and show it again when you like
- A secure room's call can't be started alone, since its end would erase the room
- After a call, your computer writes your own minutes by itself, then the decisions, tasks and open questions for you to add, and the transcript's chapters. A long call is read in parts, and the recap card shows only what the call has
- Links in messages open in your browser when you click them
- Click a room's picture to see it large, and zoom photos with the viewer's new buttons
- Every transfer says how it's going: how much came, how fast, about how long is left, or what it's waiting for
- A file you send over 25 MB is a big file, which goes only straight between two computers, and video and voice messages are held to 25 MB
- Remove from Files no longer deletes anyone else's copy: the file leaves the room's Files and stops being shared from your computer, and people who downloaded it keep theirs
- On macOS and Linux, an update you leave waiting installs itself at a quiet moment, after a one-minute countdown, never during a call
- Capy picks itself up: its background part starts again by itself, the window loads again if it crashes, a message it can't show no longer breaks the room, and what you were typing comes back (outside secure rooms)
- Rooms hold up against a member who tries to flood or break them
- Error reports say which version of Capy each error happened in
- The language cards show each language's name in English too
- Fixes and polish across the app
Once installed (on a Mac, in Applications), Capy updates itself over the peer-to-peer network.
Beta software: features may change and data may be lost. Keep copies of anything that matters, and your 24 words somewhere safe.