Pirate Ship is great if you want simple, discounted USPS labels—saving up to...

https://wiki-book.win/index.php/Can_Pirate_Ship_Handle_UPS_Ground_and_Air_Reliably%3F

Pirate Ship is great if you want simple, discounted USPS labels—saving up to 87% without monthly fees. Just keep in mind their support is email-only and they don’t offer DHL Express