Persistent Cart keeps a logged-in customer's cart intact across every device. Switch from phone to laptop and it's waiting at login, same items, same quantities. Share a Cart lets a customer send a link to their exact cart. The recipient gets that same cart, ready to order, on the cart page by default (checkout redirect is an optional setting). The app shows the clicks and orders that came through shared cart links, by channel.

• Cart continues across devices for every logged-in customer, no re-adding items.
• Share a Cart: send a link, the recipient gets that exact cart, ready to order.
• See the clicks and orders that came through shared cart links, by channel.
• Optional setting: send Share a Cart links straight to checkout instead of cart.
• Requires turning on the app embed in Online Store > Edit theme > App embeds.