Hi @Sal88r, 

Thanks for being a part of our community! Currently there isn't a way to create a QR code for review requests within Klaviyo. QR codes needs a static URL and each review request URL generated by Klaviyo is unique, so there wouldn't be a way for a 3rd party to generate a new link for each unique customer to redirect them to the correct review page.
 
I’ll pass along this request to our product team as a future product feature on your behalf. I do see how it could be helpful to have the option to create unique QR codes to share with customers that link to their review page!

~Chloe