Justletthemknow
Instant push notifications to the QR code owner. One scan - and the connection is made
Three steps - done
No registration, no apps, no searching for contacts
Scan
Point your smartphone camera at the QR code
Choose action
Ping, like, or thanks
Done
Notification delivered instantly
Notification types
Each QR code supports three key interaction scenarios

Ping - notify instantly
An instant notification with no limits. Used when it is important to quickly draw attention.
- A car blocking access or exit
- Alerting an owner of a bicycle or scooter
- Alerting an employee or administrator
- Notification about forgotten or left items

Likes - a unique reaction
A unique notification. A like can be sent only once from a single device.
- Storefront or cafe display
- Product, packaging, or presentation stand
- Exhibitions, displays, and showrooms
- Idea or prototype evaluation

Thanks - accumulated appreciation
Unlimited number of notifications. All thanks are aggregated within a single QR code.
- Hair salons and barbershops
- Coffee shops and restaurants
- Couriers and service specialists
- Independent professionals and freelancers
Ready-to-Use Scenarios
Standard QR codes can be easily adapted for various tasks
QR on a Car
Ping code under the windshield. Allows quick notification of the owner without leaving notes or searching for contacts
QR on a Shop Window
Like code to rate the display or product. Helps understand visitor interest
QR at the Barber
Thank-you code at the workplace. Clients can express gratitude for the service
QR at an Event
Combined 'Like + Thank-you' code to collect guest feedback without surveys
QR in the Office
Ping code for quickly contacting the responsible employee or administrator
QR on Packaging
Like code for simple measurement of interest in a product without registration
QR in the Restaurant
Like or Thank-you code on the table for instant feedback on dishes or service
QR by the exhibit
A like code beside the artwork. Visitors mark what they enjoyed and the author sees real reactions