Whenever you think to protect your business, you need a software which can scan out the people who trace them. You might have heard about the qr code generator, which will be helpful for you in the business. If you're interested, then you can even download the tool with which you can able to prepare the vcard and many others. You can have a trial for 30 days and if you're satisfied then you can move on with it. To know further details about it in brief you can refer the official website.