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
Free
In-App Purchases
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
1.1.2
August 10, 2026
Bug fixes & improvements: Continued Early Access improvements for live audio calls Improved door creation, naming, and editing Kept door-flow actions clear above navigation Strengthened call reliability and end-state handling
MoreSubscription plans
KNOC Pro Yearly
Yearly access to multiple QR doors.
$24.991 Year
User reviews
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.