Pirate Ship: CheapARR Shipping

The app listing says " We pass-through the cheapest USPS pricing tier available (Commercial Pricing) and don't charge any fees or add any markup. Just pay the actual cost of the postage as you go!" But unfortunately, they don't do that for Media Mail. It's the same retail-rate, not the commercial base pricing as they advertise. Bummer as the software looked nice. So leaving a review for other folks to not have to waste time thinking that they offer commercial pricing for all shipping tiers. I wish they didn't advertise that or I could have saved my time and effort. Thanks anwyays