Which one fits
RF is the better pick for a Shopify store that needs barcodes on its products. It creates barcode numbers and SKUs for products that have none, finds the ones that are missing, and prints shelf and price labels at no cost. A store that only needs product labels has no reason to pay for Printout Designer.
Printout Designer is built for the order side. Labels can carry order data such as the customer, the order number and the line items, the same drag-and-drop editor makes the invoice and the packing slip, and documents print or email themselves when an order reaches a status you choose. A store with a warehouse may well run both, and Printout Designer also works on BigCommerce, Ecwid and WooCommerce.