Which one fits
MS suits a Shopify or Shopify POS retailer that labels stock as it arrives. Barcode and SKU generation is unlimited even on the free plan, labels print from Stocky purchase orders and the product page, and 200 labels a month cost nothing.
Printout Designer covers the fulfilment side. Labels can use order data as well as product data, the same editor builds invoices and packing slips, and documents print or email themselves when an order reaches a status you choose. Plans count products and orders rather than labels, and the same setup runs on BigCommerce, Ecwid and WooCommerce.