Pirate Ship is great if you want deep USPS discounts—up to 87% off—and...

https://www.slideserve.com/soltostvly/what-s-the-simplest-way-to-compare-pirate-ship-and-shippo-without-overthinking-i

Pirate Ship is great if you want deep USPS discounts—up to 87% off—and straightforward, no-fee shipping. Just note, their support is email-only, and they don’t offer DHL Express. If you need more carrier options or faster help, Shippo might be better