Best free Upsell and bundles Shopify apps in 2026 [Updated]
PickYourApp Review Team
6 min read
•
Dec 25, 2025
The Best Free Shopify upsell and bundle apps help merchants maximize sales through smart product combinations, volume discounts, and strategic cross-selling. From AI-powered marketing tools to back-in-stock alerts, these apps enable store owners to create compelling bundle offers, implement BOGO deals, showcase frequently bought together items, and set up quantity breaks - all without upfront costs. Whether you need product labels to create urgency, sales popups for social proof, or gift wrap options for additional revenue, these free solutions deliver essential features to increase average order value and improve conversion rates.
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#1. Create seamless bundle offers and smart volume discounts that encourage customers to buy more
AOV Bundles Upsell helps you sell more in every order with multiple bundle types and smart volume discounts. Create fixed bundles, mix-and-match sets, or let customers build their own kits. Use AI-powered Frequently Bought Together recommendations to increase average order value with offers that feel natural to shoppers. Turn small carts into bigger orders with quantity breaks and personalized bundle offers. The fully customizable widget matches your store's branding seamlessly. Launch in just a few clicks—no coding required. Monitor customer responses, adjust your bundles easily, and keep improving results. Get 24/7 support whenever you need help, from install to impact.Install from Shopify App Store
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#2. Notify Customers with back in stock alert when items are restock & make out-of-stock waitlist
Never miss a sales opportunity with REZ Notify Me, a complete back-in-stock alert solution for your Shopify store. When items are out of stock, display a customizable "Notify Me" button that lets customers join your product waitlist. The app automatically sends restock notifications via email when products become available again. Track customer demand through detailed product analytics while building your mailing list. With fully customizable notification templates and alert emails, you can keep shoppers engaged and informed about the items they want. Send up to 1,000 email notifications monthly and get support from our dedicated team via live chat or email whenever you need help.Install from Shopify App Store
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#3. Turn cart into conversion with sleek slide-out drawer, quick checkout & full customization.
AOV.ai Cart Drawer Cart Upsell transforms your standard cart into a sleek slide-out cart drawer with real-time updates as customers shop. This cart upsell tool helps increase AOV with irresistible offers displayed right inside the cart drawer. Fully customizable to match your store's look - adjust layout, styling, and cart elements including variants visibility. Speed up checkout with the quick "Checkout Now" button while customers can add discount codes and leave order notes for smoother order fulfillment. The slide cart features smooth animations, trust badges, and announcement bar to boost conversion. Mobile-ready and compatible with all major Shopify themes, backed by 24/7 support to help you maximize sales.Install from Shopify App Store