You can offer a free physical, digital, or service product by setting the price to 0.00 or by creating a discount.
Note: Customers will always see credit card fields at checkout. If they're buying a free product and shipping is also free, they can skip the billing fields and click Submit to complete the order. It's not possible to hide the billing fields during checkout for free products.
Step 1 - Add or open the product
If you're creating a new product, follow these steps to add the product.
If you're changing the price of an existing product, in the Home Menu, click Pages. Click a Products Page. Double-click a product to open the product editor. For detailed steps, visit Editing a product.
Step 2 - Set the price to 0.00
In the product editor, click the Pricing & Variants tab.
To set the regular price as free, click Price and set it to 0.00.
To make the product free temporarily, set the Sale Price to 0.00 and then check On Sale.
In your store, the product's price will display as 0.00 in your currency.