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QR Doorbell - KNOC

QR Doorbell - KNOC

The private no-hardware bell

6 ratings
4 reviews
🔧 Utilities
🌟 Lifestyle
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 25, 2026
  • August 23, 2026

Features

Developer

MAZARI HOLDINGS LLC
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QR Doorbell - KNOC screenshot #1 for iPhone
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About

This app allows you to create a virtual doorbell using a QR code. Visitors can scan the code to leave messages, and you can receive and respond to these notifications directly from your phone without requiring any special hardware or visitor app downloads.

✓Create QR code doorbells
✓Visitor messaging without app
✓Receive knock notifications
✓Reply to visitors from phone
✓Support text, photos, audio
✓Manage doors and account
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What's New in QR Doorbell

1.1.4

August 23, 2026

This update adds privacy-conscious crash diagnostics to help us identify and fix problems faster. It also improves subscription and billing screens and includes under-the-hood reliability updates for messaging, push notifications, account continuity, and live audio support.

More

Subscription plans

KNOC Pro Yearly

Yearly access to multiple QR doors.

$24.991 Year
How to cancel QR Doorbell subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Super helpful

I don’t have a doorbell at my apartment, this app was a game changer. Now I can get notified easily and not have to buy anything to solve this issue
ZathernalZathernal

Easy and simple

This app makes communicating with people at my doorbell super easy, apps pretty easy to navigate too.
Ian-42Ian-42

Love this App

Nice looking app. Simple to use. It really got me out of a jam to have a doorbell while I was away.
Maria MetcalfMaria Metcalf

Wow this is great

This is Amazing! Makes my front entrance look clean and the updates and phone notifications is exactly what I needed! This is gold mine
FitRoutineFitRoutine

FAQ

What is KNOC?

KNOC is a virtual doorbell that uses QR codes. It allows visitors to leave messages by scanning a QR code you create for your door, without needing to download an app themselves.

How does KNOC work?

You create a QR code for your door via the KNOC app. Visitors scan this code with their phone's camera to leave a message, which you then receive and can reply to within the KNOC app.

Does KNOC require special hardware?

No, KNOC is designed to be a no-hardware solution. It eliminates the need for traditional doorbell wiring or cameras.

Can visitors leave messages with KNOC?

Yes, visitors can scan the QR code and leave messages using text, photos, or audio (if available) without needing to install any application.

What are the subscription plans for KNOC Pro?

KNOC offers 'KNOC Pro Monthly' for $2.99 and 'KNOC Pro Yearly' for $24.99. These plans likely unlock additional features or increase usage limits.

Is KNOC available on Android devices?

Based on the provided data, KNOC is currently supported on iPhones. Information regarding Android availability is not specified.

How often is KNOC updated?

The latest version of KNOC is 1.1.2, last updated on August 10, 2026. This indicates a recent update, suggesting active development.

What is the age rating for KNOC?

KNOC has an age rating of 12+, making it suitable for users aged 12 and older.