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What is a QR Code?

A QR Code is a two-dimensional barcode that can be read by a smartphone camera. It allows encoding over 4000 characters in a two-dimensional barcode. QR Codes may be used in a variety of situations it can be used for displaying text to the user, opening a URL, saving contact to the address book, or composing text messages.
To read QR Codes with a smartphone, you can just use the default camera app

Are QR Codes Free?

All QR Codes are free. Including URL, Location, E-mail, Text, SMS, WhatsApp, WiFi, Skype, Bitcoin, Paypal, V-card, Call. When you create them, you can use them forever. Just make sure they work before printing, as you will not be able to edit them later. And please note that the word "QR Code" is a registered trademark of DENSO WAVE INCORPORATED.

Can I use QR Codes for commercial purposes?

Yes, you can use them anywhere. There are no limitations our QR codes are free forever.

What kind of information QR codes can store and where can I use them?

It can store any kind of information depending on what you need. If you want to reach your website faster with just a scan you can store the URL. You can also store contact details information so you don't have to type information manually. You can print a QR code for your WIFI connection password and place it somewhere in your home that your guest can easily connect to your home WIFI network. It's a good tool for advertising, add a QR code to your banner or in your public advertisement that anyone can access your website easily. You can create a PayPal donate QR code that people can support you easily. But the limits are just in your mind you can do with it anything you want.

Do QR Codes expire and how long are they valid for?

In short QR Codes will never expire, but as long as the URL or link is valid it is not changed or deleted. As if you delete the URL or change it, the QR code will point to the unexisting link.

Can I customize and add my company logo or icon in to the QR code?

Yes, you can, just use the upload button at the bottom of the customization menu and then press generate QR code, and you will see your logo in the middle of the QR code.

Can the smartphone scan QR Code?

Yes, you can, you need to open the camera app and hold it over a QR Code until you see a notification pop up. If this method didn't work, you need to check your settings and check if the QR Code scanning feature is enabled. And if you can't find any settings regarding QR code you can download the QR Code scanner app from the Google Play Store

Do you want to get more information about what QR code is?

If you want to learn more about QR codes and the story behind them I recommend watching this youtube video that may answer most of your questions.

Also there is a a lot of good infotmation about QR code in Wikipedia, read here.

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