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Best Checkout Shopify apps in 2027 [Updated]
PickYourApp Review Team
6 min read
•
Oct 19, 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.
| Name | Rate on Shopify | Price | Free trial | Key features |
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#1. One click upsell and cross sell. Show frequently bought together product upsell & related products.
Essential Upsell & Cross Sell
Free plan available | Free trial availableIncrease 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. -
#2. Boost AOV with a custom slide cart featuring cart discount, urgency timer, free shipping bar, etc.
Kaching CartDrawer Cart Upsell
Free plan available | Free trial availableKaching Cart Drawer Upsell helps increase your average order value with a customizable slide cart designed to drive conversions. Add upsell sliders featuring frequently bought together products, or use simple toggles for gift wrapping and shipping protection. The app includes urgency countdown timers to encourage faster checkouts, plus free shipping and free gift bars that motivate customers to add more items. Payment icons build trust right in your cart drawer. Built with user experience in mind, this cart upsell solution requires no coding and supports translation to any language. Create and customize your slide cart to turn every shopping session into a revenue opportunity and increase AOV with proven upsell strategies. -
#3. Top stores sell more per order. Now you get their cart drawer and bundles in one app.
Section Store & Cart Drawer combines three essential tools in one app to help you sell more per order. Get a cart drawer with rewards, free shipping bars, gift offers and upsells. Create bundles with quantity breaks, buy X get Y deals, and mix and match options. The app also builds product pages, home pages and landing pages using AI sections. You can set everything up through the app settings or take a faster route. Connect Claude or ChatGPT and simply ask for the cart drawer, bundle or A/B test you need. The AI builds it directly in your store. Additional features include add-ons, upsells, sticky add to cart buttons and trust badges for your buy box. -
#4. Slide cart drawer with upsells, reward bar & free shipping goal. Sticky add to cart barincluded
Essential Cart Drawer adds a customizable slide cart drawer to your store with in-cart upsells, cross-sells, and reward bars featuring free shipping goals. Set up spend tiers that unlock free shipping, free gifts, or automatic discounts as customers add items to their cart. The app includes countdown timers and announcement bars to create urgency, plus a sticky add to cart bar with product images, variant picker, and quantity selector. Choose upsell products using Shopify AI or hand-pick them yourself. Full cart customization options include discount codes, order notes, payment icons, custom HTML, and multi-language and multi-currency support for global markets. -
#5. Increase Profits, AOV & Sales with a Free Shipping Cart Progress Bar Goal and Cart Upsell.
Stop giving away free shipping without getting anything in return! This free shipping bar app helps increase your average order value and sales by showing customers how close they are to earning free shipping. When shoppers see "You're only $20 away from free shipping!", they're motivated to add more items to their cart to reach that goal. Set up a cart goal value and offer rewards like free shipping, discount codes, or other incentives when customers hit that threshold. The progress bar can be placed anywhere - on your product page, cart page, cart drawer, or as an announcement bar. The app includes cart upsell and cross-sell features to maximize results, plus revenue tracking so you can see exactly how much additional money the shipping bar generates. It's highly customizable with pre-made styles, supports multiple currencies and translations, and works with Online Store 2.0 themes. -
#6. Upgrade your cart with a high-converting slide cart, upsells, and smart rewards.
This slide cart drawer helps reduce cart abandonment and increase average order value with smart upsells, cart rewards, and free shipping bars. AI picks relevant product recommendations based on what shoppers actually buy together. The app includes cart add-ons, discounts, and a free shipping progress bar to motivate larger purchases. Works with Shopify Sidekick to check your cart setup or turn features on without opening the dashboard. Set up takes under 5 minutes with no coding required. Compatible with most themes and supports 13 languages. 24/7 support team available to help. -
#7. Validate checkout, add payment, shipping & discount rules, checkout blocks & post-purchase upsells
SMART Checkout Rules gives merchants complete control over their checkout experience with flexible validation and customization options. Hide, block, sort, or rename payment methods and shipping options based on conditions like customer tags, country, cart value, products, or discount codes. Perfect for managing high-risk orders, blocking COD or specific payment methods like PayPal and Credit Card by customer criteria. Increase average order value with one-click post-purchase upsells and downsells that appear after checkout. Add checkout blocks including banners and discount codes to reduce abandoned checkouts and drive conversions. Apply checkout validation rules and discount logic based on cart total, customer tags, or delivery method. Ideal for B2B stores, international shipping flows, and merchants who need advanced checkout control without coding. Manage high-risk checkouts effectively while creating a smoother customer experience with smart payment and shipping rules tailored to your business needs. -
#8. Prep for Black Friday and boost AOV with slide cart upsells, free gifts & any design request!
Amp Slide Cart Drawer Upsell helps you increase AOV with a premium-looking cart drawer that matches your brand perfectly. The app includes cart upsells, cross-sell recommendations for frequently bought together items, progress bars to motivate higher spending, free gifts, BOGO offers (buy x get y), discounts, and announcements. Set up your slide cart in minutes without coding—choose from agency-grade themes built for various industries. The sticky cart drawer stays accessible from anywhere on your site and works across all languages and markets. Get 24/7 global support for any design request or question. Turn your cart into a revenue machine with every section customized for your brand. -
#9. EasyGift: free gift with purchase app. Automatic gift, BOGO, buy 1 get 1 & buy X get Y offers
EasyGift is a free gift with purchase app that automatically adds gifts to your cart when specific conditions are met. Run BOGO (buy one get one), buy X get Y, and buy 1 get 1 offers with ease. Set up tiered gifts based on cart value or trigger automatic gifts using cart subtotal, quantity, products, collections, or product tags. Gifts can be added silently to the cart or displayed in a popup where shoppers choose their free gift. Target customers by tag, total spend, order history, B2B status, or country. Schedule your GWP offers for events like Black Friday, receive out-of-stock alerts, and track orders for each rule. Discount gifts using Shopify Functions and create compelling add-on promotions that drive sales. -
#10. Boost AOV with 1-click post-purchase upsells, an AI cart, checkout upsells, thank you offers & more
Aftersell helps you increase revenue from every order without spending more on advertising. The app offers one-click post-purchase upsells with Smart Funnel AI that shows customers the right offer at the right time. You can grow your average order value using an AI-powered cart that includes over 18 blocks, rewards programs, and A/B testing capabilities. Customize your thank you page with cross-sells and product recommendations to drive additional sales. Shopify Plus merchants can add checkout widgets including upsells, upgrades, and customer testimonials directly at checkout. The app also features Rokt Thanks, which lets you earn up to $0.80 per order by displaying premium offers from brands like Disney+ and Nike on your confirmation page. This creates a passive revenue stream while providing value to your customers. All features work together to maximize your store's profitability without requiring additional ad spend.
