Pirate Ship shines with USPS discounts up to 87% off and easy-to-use label...

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

Pirate Ship shines with USPS discounts up to 87% off and easy-to-use label printing, great for small to mid-sized sellers focused on USPS. But if you need DHL Express or prefer 24/7 support beyond email, Shippo might be a better fit