Set one cart total and one gift. Shoppers see how close they are as they shop, and the gift is added to their cart at no charge the moment they qualify.
Enter the store you want to install on. You’ll be asked to approve the app’s permissions in your Shopify admin.
Shoppers see what they have left to spend to earn the gift, in your store’s own currency, and it updates as the cart changes — no page reload.
A Shopify discount function prices the gift line at zero, so the total is correct at checkout rather than adjusted afterwards.
The bar is a theme app extension: switch it on in the theme editor and place it where you want. Nothing is written into your theme files.