UpsellBoost grows your AOV automatically. Show the perfect upsell to every customer in the cart drawer and immediately after checkout — no coding needed. Set smart rules based on cart contents, order size, payment method, or stock levels. Each upsell appears as a beautiful swipeable carousel with urgency timers and one-tap add to cart. Track every accepted upsell, revenue added, and acceptance rate in your analytics dashboard. Works with all Shopify themes out of the box.