Pirate Ship shines with USPS discounts up to 87%, making it great for sellers...

https://technivorz.com/does-shippo-really-offer-strong-ups-rates-compared-to-other-tools/

Pirate Ship shines with USPS discounts up to 87%, making it great for sellers focused on affordable USPS shipping. But if you need DHL Express or prefer phone support over email-only help, Shippo might be a better fit