Shopify shipping app Pirate Ship on an iPad

The cheapest way to buy USPS® postage with Shopify

Connect your Shopify store to Pirate Ship and access the cheapest shipping rates available like Priority Mail Cubic®

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Get the App!Priority Mail Flat Rate Box on a scaleDymo 4XL shipping label printer

Free & powerful shipping software for Shopify

Cardboard box with a USPS shipping label
  • 💰

    Get the deepest discounts for free

    Get Commercial Pricing® with no fees or markup, and access secret services like Priority Mail Cubic that will save you up to 89% compared to walking into the Post Office®

  • 🔌

    Powerful shipping integration for Shopify

    Our Shopify app makes it easy to import & purchase postage for Unfulfilled orders. Pirate Ship automatically marks orders as "Fulfilled" & sends back tracking numbers.

  • 📦

    #1 free shipping software

    Powerful & easy to use features designed to simplify shipping & save you the most money possible. Pirate Ship is a Shopify shipping app that actually makes sense!

  • ⌛️

    Unlimited batch postage processing

    Need to ship big batches of dozens or even thousands of packages at the same time? Unlike other Shopify shipping apps, Pirate Ship doesn’t put any limits on batch size.

Pirate Ship is optimized for Shopify shipping

  • 🖨

    Print postage with any kind of printer

  • 🇺🇸

    Hand your package to your USPS letter carrier

  • 💸

    Get the deepest discounts: Commercial Pricing

  • 📦

    Access secret shipping services like Priority Mail Cubic

  • ⚖️

    No fees, minimum volume commitments, or gotchas

  • 😀

    Chat and email support for advice or questions

Pirate Ship is 100% free

No monthly fees. No markups. No minimums.

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Friendly customer support

We're here for you anytime, via chat or email.

The deepest discounts

Get the best USPS® rates: Commercial Pricing®

Free shipping software

No fees, markup, or hidden costs. Just the best rates!

No commitment

Try it. If you don't like it, tell us why, but there's no risk!

Get the App!