Pirate Ship: CheapARR Shipping

Been using Pirate Ship for about 5 years now. THE BEST. It's intuitive, it allows you to set up and save packages you frequently use, and it learns from similar orders to suggest packaging for an order. I've used their customer service a handful of times, and let me tell you, they are QUICK to respond and get you what you need! For shipping and pairing with Shopify, we couldn't recommend them enough!