Version 2.14 of Price Based on Country Pro is now available. The new version introduced full compatibility with the WooCommerce Checkout Add-Ons by SkyVerge plugin.
Checkout add-ons based on customer country
With the WooCommerce Checkout Add-ons plugin you can add free or paid options to your checkout page. You can add several different types of fields.

The new compatibility allows you to set the cost of the checkout add-ons for each pricing zone.

Upgrade to Pro
The “WooCommerce Checkout Add-ons” built-in integration is available now for license holders. If you do not have a license yet, you can buy one with just a few clicks from the pricing page.