Postal rate calculator. Calculate postage given a package dimensions / weight, tells you which carrier to use (USPS, UPS, FedEx, etc.). There is one app like th

Postal rate calculator. Calculate postage given a package dimensions / weight, tells you which carrier to use (USPS, UPS, FedEx, etc.). There is one app like this already in the store, but it's not very good (and USA only).