# Knit Hosted

> Knit Hosted is a managed hosting service for Knit Spool, the open-source store-and-forward relay for Knit — a free Android messenger that carries messages phone to phone over Bluetooth and Wi-Fi with no internet, no servers and no accounts. A spool carries sealed messages across the internet to devices out of range and cannot read them. Knit Hosted runs one for you under its own hostname, with a token you control, priced by concurrent devices and paid a month at a time.

Three names: **Knit Hosted** is this service — the site, the dashboard and the fleet. **Knit Spool** is the open-source daemon it runs (AGPL-3.0-or-later, on GitHub). *A spool* is one instance of it: what a customer buys, names and deletes. Knit is the messenger, with its own site at getknit.app.

A spool sees conversation ids derived so they map to nobody, sealed frames and their sizes, attachment ids and chunk sizes, and when frames arrive. It never sees who anyone is, who is in a conversation, what a message says, who read what, or which other spools a device uses. Messages are sealed on the device before they leave; the spool is blind by construction, not by policy.

Knit does not require a spool: it works phone to phone out of the box. A spool adds reach to devices out of mesh range and a place for messages to wait, for a bounded window (seven days by default in the current Knit Spool release).

Plans are priced by concurrent device — one device is one connection at a time — from $5 a month per spool, paid a month in advance in US dollars, renewing until cancelled. Above 2,000 devices it is a conversation with sales@getknit.app. Cancelling a plan runs every spool on it to the end of the paid month at full service; deleting a spool stops it today and forfeits the rest of its month. Polar is the merchant of record.

Every spool gets a hostname of sixteen random characters under spool.getknit.app, never derived from the customer, under one wildcard certificate, so no hostname appears in a public certificate log. Spools run on Hetzner Cloud in the EU behind Caddy for TLS, from a Knit Spool release pinned by digest.

The control plane keeps an email address, a billing reference and an instance id per customer — never conversation ids, connection logs or client addresses. Support is support@getknit.app; a person reads it.

## Pages

- [Home](https://hosted.getknit.app/index.md): what Knit Hosted is and how it works, in one page
- [What is a spool](https://hosted.getknit.app/what-is-a-spool.md): the explainer — a relay, what it holds, what it sees and never sees, where one comes from
- [Run your own, or let us](https://hosted.getknit.app/self-host.md): self-hosting Knit Spool against Knit Hosted: what each takes and how to move between them
- [Pricing](https://hosted.getknit.app/pricing.md): the plans, what every plan includes, how billing works
- [FAQ](https://hosted.getknit.app/faq.md): the spool, what it can see, billing, your account
- [What we keep](https://hosted.getknit.app/privacy.md): the plain-language privacy notice: what the control plane stores, what the website records

## Open source

- [Knit Spool on GitHub](https://github.com/getknit/knit-spool): the daemon: README with the docker compose quick start, configuration and the protocol
- [Knit on GitHub](https://github.com/getknit/knit): the messenger, and the spool protocol specification under docs/
- [getknit.app](https://getknit.app): the Knit messenger's own site

## Optional

- [Terms of service](https://hosted.getknit.app/legal/terms.md): the contract, in full
- [Privacy policy](https://hosted.getknit.app/legal/privacy-policy.md): the formal policy, in full