Shopify product options: how-to guides
Each guide starts with the free way to do it in your theme, then covers when an app is worth it.
How to add an engraving option to a Shopify product (and charge for it)
Three ways to let customers type engraving text on a Shopify product page, what each costs, and how to charge for engraving without doubling your variants.
How to offer gift wrapping on Shopify product pages
Add a gift wrap checkbox and gift message to Shopify products: the free cart-note method, the add-on product method, and charging for wrap at checkout.
How to add a custom text field to a Shopify product page
Let customers type a name, monogram or note on your Shopify product page. The free line item property code, how to make it required, and when you need an app.
How to charge for product add-ons on Shopify without creating variants
Charge extra for engraving, rush orders, premium materials or other add-ons on Shopify without multiplying variants or adding duplicate products to your catalog.