Peer-to-peer, by design

A ring, not a hub.

We make apps where devices connect directly. Conversations live on the devices of the people in them.

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Our app

Capy, a private meeting room.

Calls with shared notes, decisions and insights, worked out on the computers in the room. No account, and no server that can read your rooms.

Capy during a voice call: Ana, Leo and Rafael in the Product team's Sprint review, Leo with his hand raised, and the live transcript open beside them.
Capy · private meeting room
  1. 01

    No account

    Open a room and invite the people you work with. Nothing to sign up for.

  2. 02

    Direct when possible

    Calls and notes go straight from one computer to another, locked so only the people in the room can read them.

  3. 03

    Kept in the room

    Notes, decisions and insights are kept on the computers of the people in the room.

How P2P works

Take the server out of the path.

In a peer-to-peer app, devices find each other and talk directly, locked so only the people talking can read it.

  • Data goes straight from one device to another when it can, encrypted end to end.
  • Any peer can drop out and the rest keep working.
  • Peers share the load, instead of one server carrying it all.
no center
The usual way

Client and server

In most apps every message, file and call passes through a company's servers first. They keep it, and everything depends on them.

  • One place sees and stores everything.
  • If it goes down, everyone goes down.
  • Costs grow with every user you add.
server
Why peer to peer

Power and access, spread out.

We believe in what is held in common. When the devices carry the traffic themselves, what used to need a company and a budget becomes something anyone can run on their own computer. Decentralized by design, and within everyone's reach because of it.

No central database

Conversations live on the devices of the people in them, not in one company's database. The copies our blind peer keeps are encrypted.

No single place everything depends on

Rooms live on the devices in them, and devices that can reach each other connect on their own.

Light infrastructure

Devices carry the traffic. We run a few small helpers that only ever see locked data they can't read.

Your keys, on your device

Your identity is 24 words kept on your own device, and each member's device keeps a copy of the rooms they're in.

About

Building P2P software because we believe in it.

A ciranda is a Brazilian circle dance. People hold hands in a ring, nobody leads and nobody stands in the middle. That is how we think software should connect people: every device an equal peer, with no company at the center.

Capy, our first app, is a private meeting room. It's in beta now.

What Ciranda is
who
The people behind Capy.
what
Peer-to-peer apps where devices talk to each other directly.
now
Building Capy, a private meeting room app.
rule
Conversations live on the devices of the people in them. No accounts, and no central database of what they say.
How we build
  • No accounts
  • Encrypted end to end
  • Data on your device
  • No central database
  • AI runs locally
  • Direct when possible