What KNOC is
KNOC turns a printed QR code into a doorbell. A visitor scans it, sends a short message — text, voice note, photo, or phone number — and the owner gets a notification. The owner can reply from anywhere. Visitors can also request a live audio call, which is in Early Access and works on many but not all browsers and devices. No installed doorbell hardware, no app required for the visitor, no public profile.
Why we built it
Traditional video doorbells trade away a lot of privacy in exchange for convenience: always-on cameras, faces uploaded to the cloud, third-party platforms that decide what to do with the footage. We wanted a calmer answer — something that lets a visitor knock and a homeowner respond when they choose to, without recording the whole street.
How it works
- Print a small KNOC QR code and put it where visitors can find it (front door, gate, reception desk).
- When someone scans it, they reach a simple page that lets them leave a message. No app install, no account.
- You get a push notification on your phone. Reply with text or a quick voice message; the visitor sees your reply at a unique link. On doors where you've enabled it, an eligible visitor can also request a live audio call that rings your devices — Early Access, and not available on every plan, door, or browser.
What guides us
Privacy first: collect only what's needed, delete visitor submissions on the schedules described in our Privacy Policy, and retain other records only for operating, securing, and protecting the service or meeting legal requirements. Local-feeling experience: ship in the languages and currencies where our customers actually live. Resilient over flashy: a doorbell only earns trust by working reliably, not by being clever.