Pirate Ship offers up to 87% off USPS rates, making it a top pick if you mainly...

https://telegra.ph/Whats-the-Simplest-Way-to-Compare-Pirate-Ship-and-Shippo-Without-Overthinking-It-07-27

Pirate Ship offers up to 87% off USPS rates, making it a top pick if you mainly ship USPS and want great discounts. Its support is only by email, which might slow things down