Pirate Ship scores big with USPS discounts up to 87%, making it a favorite for...

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

Pirate Ship scores big with USPS discounts up to 87%, making it a favorite for sellers shipping mostly USPS. Their support is solid but email-only, which might slow things down