Fly: Bundles & Quantity Breaks vs Opus Cart Upsell Cart Drawerfor Shopify (2026)

Both Fly: Bundles & Quantity Breaks and Opus Cart Upsell Cart Drawer are highly-rated Shopify apps (5/5) designed to increase Average Order Value (AOV) through upsells, cross-sells, and other incentives. However, they focus on slightly different aspects of AOV optimization. Fly emphasizes product bundles, quantity breaks, and volume discounts to encourage larger purchases, positioning itself as a comprehensive solution for structured promotions. Opus, on the other hand, concentrates on cart customization and user experience to boost conversions, particularly through its cart drawer enhancements and features like urgency timers and abandoned cart analytics. The key difference lies in their approaches: Fly leverages diverse bundling and discount strategies applied throughout the product browsing and checkout process, while Opus optimizes the cart itself through a streamlined and persuasive interface. Fly seems more suited for merchants who want to create complex promotional structures, whereas Opus is best for merchants who prioritize enhancing the cart experience to convert existing traffic more effectively. Both boast user-friendly interfaces and claim to avoid impacting store speed.

Both Fly: Bundles & Quantity Breaks and Opus Cart Upsell Cart Drawer are highly-rated Shopify apps (5/5) designed to increase Average Order Value (AOV) through upsells, cross-sells, and other incentives. However, they focus on slightly different aspects of AOV optimization. Fly emphasizes product bundles, quantity breaks, and volume discounts to encourage larger purchases, positioning itself as a comprehensive solution for structured promotions. Opus, on the other hand, concentrates on cart customization and user experience to boost conversions, particularly through its cart drawer enhancements and features like urgency timers and abandoned cart analytics. The key difference lies in their approaches: Fly leverages diverse bundling and discount strategies applied throughout the product browsing and checkout process, while Opus optimizes the cart itself through a streamlined and persuasive interface. Fly seems more suited for merchants who want to create complex promotional structures, whereas Opus is best for merchants who prioritize enhancing the cart experience to convert existing traffic more effectively. Both boast user-friendly interfaces and claim to avoid impacting store speed.