Pirate Ship scores big with USPS discounts up to 87%, great for sellers focused...

https://bizzmarkblog.com/pirate-ship-vs-shippo-for-beginners-which-is-less-confusing/

Pirate Ship scores big with USPS discounts up to 87%, great for sellers focused on American carriers. Their easy-to-use platform and fast email-only support work well for simple shipping needs