All QR Codes created on Unitag's platform are copyright free, and therefore are solely your property.
Once created, you can use your QR Codes without any restrictions. You may therefore use them as you see fit, this includes commercial purposes.
The content of your QR Codes is solely under your responsibility. It is your duty to see that it does not infringe applicable laws and regulations, especially with regards to online services, e-commerce, intellectual property, good practices and public order.