Instead of a monthly fee, you pay a small fee for each First Class label, which decreases as your volume increases ($0.30 per label for your first 50 packages, $0.20 per label for your next 50, $0.10 per label for your next 50, then $0.05 per label after that). There is no fee for Priority labels.
If you send more than 33 first class packages per month, you should upgrade to the Unlimited plan. If you send less than 33 first class shipments per month, then you’ll save money with the Pay Per Label plan that comes default with every Sonlet consultant account.
Check out this blog article for more info! https://blog.sonlet.com/2017/01/introducing-pay-per-label-shipping-labels-from-shoptheroe-com.html