FAQ
Questions, answered plainly
Including the ones where the honest answer is a limit rather than a feature.
The basics
What is xNocall?
A sticker for your car with a QR code on it. If someone needs to reach you about the vehicle — you are blocking them in, your lights are on, something has happened to it — they scan the code with their phone camera and can ask to speak to you.
Your phone can then ring. They never see a number, and you never gave them one.
Does the person scanning need an app or an account?
No. They scan the code, a page opens in their browser, and that is the whole interaction. There is nothing to install, nothing to sign up for, and they are not asked who they are.
Do I need an app?
You need a registered device to receive calls, because a call has to ring somewhere. Activating your sticker is done in the browser.
Privacy
Can the person who scans my sticker get my phone number?
No. Your number is never shown to anyone who scans your sticker, never travels in a notification, and is never the route a caller uses to reach you. A call arrives in the app on your own device, so the caller never dials your number and never sees it.
Can the person who scans find out who I am?
The scan page shows only what you chose to put on it, such as a display label. It does not show your name, your number, or your address unless you put them there yourself — which we would advise against.
Can you see where my car has been?
xNocall is not a tracking system and is not intended to become one. Information about scans is kept only to the extent it is needed to stop abuse of the service, and it is deleted on a schedule rather than kept indefinitely.
What happens to the code in the link when I am scanned?
The sticker code travels in the part of the web address that browsers never send to a server, and the scan page clears it from the address bar as soon as it has been read. It is not written into the page, not saved in the browser, and not logged.
Staying in control
Do I have to answer?
No. Answering is always your choice. You can reject a call, or simply not pick up.
Someone is misusing my sticker. What can I do?
A sticker can be silenced temporarily, so it stops connecting anyone while it stays on the car. If the code itself has been copied and is being abused, it can be revoked permanently and replaced with a new sticker. Once revoked, the old code stops working for everyone.
I sold the car. What happens to the sticker?
Revoke it. The code stops working, and the change is recorded, so the sticker cannot keep reaching you after the car is no longer yours.
What xNocall does not do
These are the limits of the product, stated plainly. They are here because a service like this is only worth trusting if you know where it stops.
Can someone copy my QR code?
Yes. It is printed on the outside of a car, so anyone who can see it can photograph it and use it later from somewhere else. No printed code can prevent that, and we do not claim ours can.
What we can do is contain it: revoke the code and issue a new one, and the copied version stops working.
Will a call always reach me?
No. Whether an incoming call reaches a phone depends on the operating system, the manufacturer, power-saving settings and the network at that moment. On Android this is outside any application’s control. We do not promise delivery.
How fast is it?
We do not publish a speed figure, and we do not describe the service as instant. A number would only be meaningful with a stated start point, end point, percentile and device group behind it, measured on real usage. We do not have that yet, so we do not quote one.
Does every scan lead to a conversation?
No. A scan is a request to reach you, not a connection. You may be driving, out of signal, or may simply choose not to answer.
Is it secure?
The service is built carefully, and specific parts of it are designed so that a leaked identifier is not enough to reach anyone. But no software is free of vulnerabilities, and claiming otherwise would be the least trustworthy thing on this page.
The same limits, in short
-
A printed code can be photographed
-
A call may not reach your phone
-
No speed promise
-
Not every scan becomes a conversation
-
Not a vehicle-tracking system