Vue Storefront - Open Source PWA for any eCommerce
Lydia Watch - Pay for things with one tap on your Apple Watch
Square Online Checkout - Create easy pay links for whatever you're selling and start accepting payments everywhere online.
sweetgreen for iOS - Order, pay, rewards. It's so clean, you can eat off it.
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
Apple Pay - Apple's secure way to make purchases in stores, apps and on the web.