¿Alguien podría ayudarme a averiguar el nombre de la aplicación que están usando para configurar la venta adicional como se llame?
Hi @Iron63 
tier pricing , or quantity break, apps
autotranslated
Precios por niveles, o división por cantidad, aplicaciones
Hello @Iron63,
Similar functionality can be achieved with the Push Bundle- Build a Box app. This app has both the Volume Bundle feature where you can have this same bundles on the product page and also it has the cross-sell feature where you can show frequently bought together products on the product page and offer discounts with them.
Here is a screenshot of the volume bundle feature:
And here is a screenshot of the cross-sell feature:
Let me know if you want to check the demo products.