Understanding how the app charges work

Bundle Kit is completely free if your store processes less than 50 total orders (not bundle orders) per month.
As your store processes more than 50 total orders for a given subscription month, usage charges will be created according to our pricing plans.
For example, on the 51st order, a usage charge value of $7.99 USD will be created. On the 101st order, a usage charge value of $7 USD ($14.99 - $7.99 = $7) will be created, and so on.
The maximum total that you could be charged for any given subscription month is $139.99 USD (for 2001+ orders / month).