Developed in conjunction with the US Postal Service, Stamps.com is a revolutionary software-based service that allows you to calculate and print official USPS postage right from your PC.

Stamps.com even keeps track of all your postal spending using your client codes, and can even recommend optimal delivery methods, formats and more. Plus, Stamps.com gives you postage discounts you can’t even get at the Post Office or with a postage meter.

I’m currently comparing this service vs Endicia. I’ll give update on this comparison test.