Introducing StackdBoost, the ultimate Shopify app for theme block and checkout UI extensions. With StackdBoost, you can effortlessly showcase sales and offers as upsells or cross-sells on the checkout page and theme blocks.

• Show upsells on Checkout UI (Shopify Plus only)
• Show upsells on Cart (Liquid Theme)
• Match offers with discounts

StackdPersist helps merchants keep shoppers connected to their browsing and buying journey across devices and sessions. By remembering recently viewed items, saving abandoned carts, and syncing these experiences automatically, StackdPersist boosts engagement and conversions. Your customers can browse on mobile, switch to desktop, and still find their products waiting for them. For merchants, it means fewer lost carts, increased AOV.

• Saved recently viewed items across sessions and devices
• Sync carts items and browsing seamlessly across all devices
• Show personalized upsells based on browsing behavior

Stackd: Shopping Continuity gives merchants a single app for wishlists, back-in-stock alerts, price-drop notifications, cart sync, and recently viewed products. Customers can save and share wishlists, subscribe to restock or price-drop updates, and return to a preserved cart across sessions and devices. Merchants can view the most-visited and most-wishlisted products from the app dashboard.

• Customers save and share products they want to buy later
• Email customers when an out-of-stock product is back in inventory.
• Notify customers by email when a product they follow drops in price
• Cart contents are preserved across sessions and devices for returning shoppers.
• Display recently viewed products and surface top wishlisted items to merchants.