Yes this does work with Yola built sites.The very best news is that you don't need to add any data regarding the URL to the image, it's all contained within the image itself.
Basically you create the image with one of the online facilities by inputting your URL, generate the barcode then download that image and paste it on your page. It really is that simple.
It's free to use, and is worth trying.
You can see examples thereof that I've created for my blog and its Online Mall on their respective sites. I hope they give you some inspiration and ideas.
(Incidentally, Unitag would prefer that you have the i-Nigma reader installed on your smartfone when it comes to coloured QR codes such as those from Unitag. Whether other readers can thus discern is anybody's guess; however, please let me know about your attempts in this regard.)
It is possible to create a link in a mobile website that will open a QR code scanner on an iPhone or Android phone when the user clicks on it?
Specifically, I am building a site using jQuery Mobile and want to have a button that says "Scan QR Code." When the clicks on it, it will open whatever scanning app they have on their phone.I found another similar question here, and it appears the answer is no.