Best Checkout Shopify apps in 2026 [Updated]
PickYourApp Review Team
6 min read
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Feb 26, 2026
The best Shopify checkout apps help merchants customize their purchase flow, increase average order value, and provide better shopping experiences. From one-click upsells and smart cart drawers to order forms and terms & conditions integration, these tools offer essential features for optimizing the final steps of your sales funnel. Whether you need COD management, minimum order rules, or cart upsell capabilities, this handpicked selection of top-rated checkout solutions delivers the functionality to convert more browsers into buyers while maintaining compliance and building customer trust.
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#1. One click upsell and cross sell. Show frequently bought together product upsell & related products.
Increase your average order value with Essential Upsell's smart product recommendations. Show customers frequently bought together items, related products, and add-ons directly on product pages and in the cart drawer. Create effective upsell strategies with "also like" suggestions, product bundles, and buy-one-get-one offers. The app lets you set up one-click upsells and automatic pre-purchase discounts to encourage more sales. Customize your product recommendations and cross-sell widgets to match your store's look while making it easy for shoppers to discover complementary items. Perfect for merchants wanting to grow cart value through strategic product suggestions and bundle offers.Install from Shopify App Store
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#2. EasyGift: Free gift with purchase app for auto add to cart automatic gift, BOGO & Buy X Get Y offer
Automatically add free gifts and product add-ons to your customers' carts with EasyGift's simple cart rules. Create targeted BOGO (Buy One Get One) and Buy X Get Y offers based on cart total value or specific products purchased. The app makes setting up free gift with purchase promotions straightforward through an easy-to-use interface. Schedule your cart upsell offers to run during specific timeframes and customize rules for different collections. Whether you want to reward customers who reach certain spending thresholds or purchase particular items, EasyGift helps you manage automatic gift additions seamlessly. Perfect for creating engaging cart upsells and running promotional campaigns that encourage larger purchases.Install from Shopify App Store
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#3. Increase Profits, AOV & Sales With A Free Shipping Progress Bar Cart Goal and Cart Upsell.
Turn free shipping into a powerful sales tool with this smart progress bar app. When customers see how close they are to earning free shipping, they're motivated to add more items to their cart. Set custom cart goals (like $50) and reward shoppers with free delivery or special discounts when they reach the target. The progress bar works seamlessly on product pages, cart pages, or as an announcement bar. With built-in cart upselling features, you'll increase average order value while giving customers a clear path to earn shipping benefits. Track additional revenue, customize the bar's appearance, and support multiple currencies - all designed to convert browsers into bigger spenders. Perfect for Online Store 2.0 themes and available in multiple languages.Install from Shopify App Store
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#4. Boost AOV with a custom slide cart featuring cart discount, urgency timer, free shipping bar, etc.
Customize your Shopify cart drawer with Kaching AI to increase average order value and drive more sales. The slide cart features essential conversion tools like urgency timers, free shipping bars, and payment icons to build trust. Add product upsells through an intuitive slider showing frequently bought together items, or offer extras like gift wrapping and shipping protection with simple toggles. The user-friendly interface lets you design your cart drawer without coding skills, making it easy to optimize every shopping session. Create a better checkout experience that encourages larger purchases and reduces cart abandonment.Install from Shopify App Store
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#5. Boost AOV & conversion with slide cart drawer upsells, free gifts & custom brand design support!
Increase your store's average order value with a slide cart drawer that includes cart upsells, cross-sells, and frequently bought together suggestions. This sticky cart drawer stays accessible from anywhere on your site, helping reduce cart abandonment while looking great on any theme. Add progress bars to motivate customers toward spending goals, offer free gifts based on cart value or specific products, and enable BOGO deals (buy x get y). The discount bar lets shoppers apply and stack discount codes directly in the cart. Display promotions and announcements to drive conversions. With 10+ customizable features designed to match your brand, this slide cart transforms your checkout experience into a revenue-generating machine that increases AOV and improves conversion rates.Install from Shopify App Store
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#6. 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
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#7. Frequently bought together cross-sell & post purchase upsell funnels, one click upsell & cart upsell
Upsell.com (ReConvert) is an essential app for increasing your average order value and conversion rate. It lets you present targeted upsell and cross-sell offers throughout the entire customer journey. The app features AI product recommendations, frequently bought together bundles, and related products on your product pages. You can add cart upsell offers and use checkout upsell for Shopify Plus stores. Post purchase upsell funnels with one click upsell help maximize revenue after checkout. The upsell funnel builder supports Shopify Subscriptions and bundles, making it easy to create effective upsell and cross-sell strategies that work from pre-purchase to post-purchase.Install from Shopify App Store
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#8. Lift Conversions with Sticky Cart Bar, Floating Cart, Sticky Buy Button & Express Checkout.
Increase your store's conversion rate with a sticky add to cart bar that follows customers as they browse your products. The floating cart and sticky buy buttons keep shopping options visible at all times, making purchases more convenient. Add urgency with a built-in countdown timer and share important updates through the announcement bar. The sticky cart is fully responsive, working smoothly on both desktop and mobile devices. Customize the cart design and layout to match your store's branding. The homepage sticky add to cart feature lets you promote specific products right from your main page, while express checkout streamlines the buying process. Perfect for stores looking to improve their shopping experience and make purchasing easier for customers.Install from Shopify App Store
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#9. Control payment, shipping, and discounts with checkout rules for a cleaner, dynamic checkout flow.
SMART Checkout Rules gives you complete control over your store's checkout experience through customizable rules and conditions. Set up dynamic rules to manage payment methods, shipping options, and discount applications based on specific criteria like customer tags, countries, cart value, or products. Merchants can hide, block, sort, or rename checkout options to create smoother purchase flows. Perfect for handling high-risk transactions, implementing B2B checkout logic, and managing international orders - all without coding. The app helps create cleaner checkout experiences by applying smart rules for payment methods, shipping rates, and order validation, leading to better conversion rates and more efficient order processing.Install from Shopify App Store
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#10. Boost AOV & Conversions with Upsells, Cross-Sells, Free Gifts, Reward Bars & Custom Branding Support
Opus Cart Upsell Cart Drawer increases your Average Order Value and conversions through smart cart customization. This app offers upsell funnels, cross-sells, and frequently bought together recommendations that encourage customers to add more items. Set up progress bars and rewards bars to motivate shoppers toward free shipping thresholds. Create compelling offers with free gifts, BOGO deals (Buy X Get Y), and smart discounts. Drive urgency with countdown timers for limited-time promotions. The sticky cart button reduces cart abandonment while improving the shopping experience. Track lost sales with Abandoned Cart Analytics to understand why customers leave without purchasing. All features work through simple, code-free customization that turns your cart into a revenue-generating tool without technical expertise required.Install from Shopify App Store