How to Create a QR Code to Send Customers to Submit a Review
Loox enables you to send customers a link that directs them to the review submission form of a specific product in one click.
To create this link add ?ref=review to the end of your product page URL - the review form will open on top of the product page when it loads.
You can then use a free QR code maker like the one here to create a custom QR code for submitting a review for a specific product.
If the product page's URL is http://www.mystore.com/products/blue-shirt.
Use this link to send customers to submit a review: http://www.mystore.com/products/blue-shirt?ref=review.