We often get requests like:

I want to offer 30 percent off plus FREE item as a discount and I want the code to be automatic as well.

Or

How can we add a free product cart and get an automatic discount to apply the additional $50 off?

While we come up with a solution to automatically add the gift product to cart, We saw some clients using this Shopify app to give the free product and our Automatic Discount app to make the % discount.