Add Filter before displaying prices (to allow hiding prices)
I need to hide prices for some countries in the front-end. In Woocommerce I just add a filter like add_filter('woocommerce_get_price_html', 'do_stuff') and in do_stuff I check if the user country is a pre-defined blacklisted country and if so, I return '' so that the price won't be displayed. Works just fine.
In Product Add-Ons Plugin there is no filter before the price is displayed in the frontend so I have to use CSS to hide the prices there which is not the best solution.
We have a related case.
Adding more markup to make the shop multi-currency. Using the wc_price filter we are able to do that around Woo and Woo Bookings.
Products Add-On Plugin runs the whole sub-total calculation in JS. Would be great if the add-ons cost/subtotal would be fetched like the bookings cost via AJAX to allow modification.