Almost all users will save money using PopItUp Shipping labels.  As of the time of writing this article, PopItUp has the lowest advertised price for printing shipping labels from home for PopItUp users.  Here is a comparison of PopItUp's Unlimited Shipping Labels plan. 

Lowest advertised price

By default, PopItUp users are on the Pay Per Label plan.  If you send more than 33 shipments per month, we recommend subscribing to our unlimited shipping labels plan for $9.99.  With most shipping label software subscriptions., they charge a flat subscription fee that is tiered by usage. With the Pay Per Label plan, Regardless of whether you send zero shipments or hundreds, you will pay the same subscription fee.  With Pay Per Label, you’ll only pay for the shipments that you send, so in the rare event that your sales in one month  exceed what you  might have paid in subscription fees that month, the next month, when you send less packages, you’ll save as much or more than you over spent the month before. We’ve designed our shipping labels feature to ensure that most shippers will save money every month and all of our users will save the time and hassle of downloading addresses, remembering another username and password, and re-uploading them into another piece of software to then download and print.

You can read more about PopItUp Shipping labels on our blog: 

USPS Shipping Labels from PopItUp

Save Time and Money Using PopItUp Shipping Labels