Top 25 Cart Customization Apps for Shopify Stores in 2026

Frequently bought together cross-sell & post purchase upsell funnels, one click upsell & cart upsell

What merchants say: Merchants highly recommend this app for boosting sales and average order values through its post-purchase funnels and upsell features. They appreciate the customizable thank-you pages and easy Shopify integration, noting that no coding skills are needed. The support team is praised for their quick and effective assistance, enhancing both the shopping experience and post-purchase conversions.

2,822 reviews given by store owners

One click upsell and cross sell. Show frequently bought together product upsell & related products.

What merchants say: Merchants highly recommend this app for boosting average order value through effective upsell and cross-sell strategies. They praise its easy setup, user-friendly interface with customizable options, and professional offer presentation. It supports both product and cart page offers, ensuring versatility. The integration is seamless, with no major issues reported. Merchants also appreciate the responsive and helpful support team, which assists with custom CSS and real-time issues, contributing to increased sales and revenue.

1,914 reviews given by store owners

EasyGift: Free gift with purchase app for auto add to cart automatic gift, BOGO & Buy X Get Y offer

What merchants say: Merchants highly recommend this tool for automating the addition of gifts and discounts to shopping carts, boosting promotional campaigns and increasing order values. They appreciate its seamless Shopify integration and support for various sales strategies like BOGO. The setup is user-friendly and reliable, with no significant bugs reported. Customer support is also praised for its quick and effective responses.

944 reviews given by store owners

AI-powered product recommendations & search: cart, checkout, post-purchase upsells, and A/B testing

What merchants say: Merchants highly recommend this app for boosting average order value and conversion rates through features like flyout carts, cross-selling, upselling, and personalized recommendations. They praise its seamless Shopify integration and reliable performance, enhancing e-commerce operations effectively. The support team is noted for their responsiveness and helpfulness. Its customization options and AI-driven automation are also highlighted for improving shopping experiences and increasing sales.

795 reviews given by store owners

Upcart — custom slide cart with full design control to increase AOV and reduce cart abandonment

What merchants say: Merchants highly recommend this cart drawer app for boosting average order value through effective upsell features and a free shipping bar. Its customizable, intuitive design enhances the checkout experience and supports custom code and CSS. The app efficiently handles discounts and rewards, improving conversion rates. Merchants praise its stable performance and responsive customer support, which provides personalized solutions.

724 reviews given by store owners

Increase Profits, AOV & Sales With A Free Shipping Progress Bar Cart Goal and Cart Upsell.

What merchants say: Merchants highly praise this app for boosting average order values and conversion rates with its customizable free shipping progress bar, which encourages customers to buy more. It integrates smoothly with various themes and supports geo-location for global shipping. The app's aesthetic and performance are well-regarded, and its customer support is noted for responsiveness and helpfulness in customization and issue resolution, even on weekends.

654 reviews given by store owners

Boost AOV with a custom slide cart featuring cart discount, urgency timer, free shipping bar, etc.

What merchants say: Merchants highly praise this app for significantly increasing average order value and conversions through effective upsell features and seamless Shopify integration. They report substantial revenue gains and appreciate the geographic-specific customizations, such as free shipping thresholds. The app is noted for its easy setup, reliable performance on desktop and mobile, and excellent customer support that includes custom coding assistance.

603 reviews given by store owners

Drive sales w/ AI Upsells, Cross Sell & Bundles. Checkout, Pre/Post Purchase, Cart Drawer & Funnels!

What merchants say: Merchants highly recommend this app for boosting average order value and revenue through effective upselling and cross-selling, including BOGO offers and free samples. Its SMART offers and AI features are noted for their innovation, while the user-friendly interface and customizable, mobile-optimized pop-ups enhance user experience. Merchants also appreciate the responsive and professional support team, which offers personalized assistance.

589 reviews given by store owners

Increase AOV w/Targeted Upsell & Cross Sell Offers. Product Page, In Cart, Pop-ups, & Post Purchase!

What merchants say: Merchants highly recommend this app for boosting average order value and sales through effective upselling at checkout. They appreciate its user-friendly interface, easy setup, and customizable offers based on specific products or collections. The app is noted for its reliable performance across various themes and seamless Shopify integration. Customer support is also praised for being responsive and helpful in resolving issues and assisting with customizations.

577 reviews given by store owners

Boost AOV & conversion with slide cart drawer upsells, free gifts & custom brand design support!

What merchants say: Merchants highly recommend this app for boosting sales and average order values, noting its effective product recommendations in the cart and its clean, professional design. They value its AI-driven upsells, customizable slide carts, and seamless integration with Shopify. Exceptional customer support is frequently highlighted, with fast response times and assistance that includes custom code adjustments and proactive problem-solving.

555 reviews given by store owners

Boost AOV & Conversions with Upsells, Cross-Sells, Free Gifts, Reward Bars & Custom Branding Support

What merchants say: Merchants highly praise this app for its effective upselling features that increase average order values and conversion rates. They appreciate the ease of use, quick setup, and seamless integration into their stores. The customization options allow for aesthetic alignment with store themes, and the app's performance is reliable without affecting site speed. Excellent customer support and reasonable pricing for upgraded features further enhance its appeal.

517 reviews given by store owners

Unlock A Suite of Powerful Offers + In-Cart Upsells + Free Gift Rewards

What merchants say: Merchants highly recommend this app for boosting average order value and revenue with minimal effort. It integrates seamlessly with Shopify, offering extensive customization options that enhance the checkout experience. The app is easy to set up and use, featuring upselling and free gifts. Exceptional customer support is frequently praised for being responsive and helpful, even on weekends, aiding with integration and customization issues.

493 reviews given by store owners

Maximize revenue in one click with AI-powered pre- & post-purchase upsells

What merchants say: Merchants highly praise this app for significantly boosting average order value and sales, with upsell rates between 40%-70%. It offers customizable upsell pages and unique funnels for each product, easy setup, and immediate ROI. The app integrates seamlessly with Shopify, supported by excellent customer service including personalized video help, and features effective built-in analytics for performance tracking. Additional benefits include improved inventory management and upselling strategy optimization.

486 reviews given by store owners

More Conversions w/ Sticky Add to Cart, Quick Buy Now Button, Cart Slider, Sticky Cart & Cart Upsell

What merchants say: Merchants highly recommend this app for its sticky add-to-cart button, quick buy options, and customizable upsell buttons, which significantly boost sales and shopping efficiency. They enjoy the festive animations like snowflakes and bats that enhance customer engagement. The app is easy to set up, supports custom CSS, and features a professional design. Reviewers also praise the responsive and helpful customer support.

472 reviews given by store owners

Auto add FREE product or gift with purchase to customers' cart based on your conditions (BOGO, etc.)

What merchants say: Merchants highly recommend this app for enhancing shopping experiences with promotions such as "Buy One Get One" offers and free gifts based on cart criteria. It's praised for easy setup, seamless integration with Shopify, and handling complex product combinations. The customer support team is noted for their quick and effective issue resolution. Merchants report improved sales and customer satisfaction.

469 reviews given by store owners

Protect your store, earn trust and avoid chargebacks with an AI-based Terms and Conditions Checkbox.

What merchants say: Merchants appreciate this app for its ability to enforce acknowledgment of shipping and refund policies at checkout, minimizing customer queries and protecting businesses. It offers customizable checkboxes, direct policy links, and integrates smoothly with various payment systems and cart designs. Installation is simple, and the app functions well across multiple devices and themes. The support team is noted for their responsiveness and efficiency, enhancing its value for small business owners.

454 reviews given by store owners

Boost CVR & AOV with Slide Cart Drawer, Progress Bar, Free Gift, Cart Upsell and Sticky Add to Cart.

What merchants say: Merchants report that this app boosts conversions and average order values by enhancing the shopping experience with a fast, user-friendly interface that maintains site speed. They praise the sleek Slide Cart Drawer and smooth checkout process, along with customizable features like sticky add-to-cart buttons and upsell opportunities. The app is noted for its reliability and ease of management, with a support team that provides quick, effective, and personalized assistance.

451 reviews given by store owners

Turn cart into conversion with sleek slide-out drawer, quick checkout & full customization.

What merchants say: Merchants highly recommend this cart drawer for boosting conversion rates and average order values, noting its effective features like the free shipping progress bar that encourages more purchases. They appreciate its smooth functionality, fast loading, and customizable options such as upsells and direct discount applications. The setup is easy, and the responsive support team is praised for quick issue resolution and customizations.

435 reviews given by store owners

Drive more pre-purchase sales with a slide cart drawer & boost AOV by AI cart upsells & progress bar

What merchants say: Merchants report increased average order values and reduced cart abandonment using this app, thanks to effective upsell and cross-sell features. It offers extensive customization, enhancing shopping experiences with tools like free shipping bars and discount offers. The app is user-friendly and reliable, with a support team praised for their responsiveness and helpfulness in personal assistance through live chats and calls, boosting operational efficiency and profitability.

417 reviews given by store owners

Premium product recommendations to increase your sales via cross-sell and product discoverability

What merchants say: Merchants appreciate this app for boosting customer experience and sales with its effective "Also Bought Together" widget. It offers seamless integration, customizable manual and automatic recommendations, and often pairs well with the "Frequently Bought Together" app. The app is known for its reliable performance and continuous improvements. Customer support is highlighted for its responsiveness and ability to swiftly resolve issues, including theme customization and technical problems.

347 reviews given by store owners

Add a terms & conditions checkbox. Protect your business by requiring the acknowledgment of rules.

What merchants say: Merchants appreciate this app for its effective display of terms and conditions, ensuring legal compliance and customer awareness before purchases. They praise its easy setup, user-friendly interface, and customization options. The app also allows adding consent checkboxes on various pages and is noted for its stable performance and responsive support team. Additionally, its cost-effectiveness and efficiency in integrating legal terms into the checkout process are highlighted benefits.

344 reviews given by store owners

Lift Conversions with Sticky Cart Bar, Floating Cart, Sticky Buy Button & Express Checkout.

What merchants say: Merchants highly recommend this app for its customizable sticky 'add to cart' button that boosts sales, especially on mobile. They appreciate its ease of installation, seamless integration, and the ability to match their store's theme. The support team is praised for being responsive and effective. Overall, it's valued for enhancing functionality and customer engagement in e-commerce stores.

336 reviews given by store owners

Increase your AOV with frequently bought together, volume discount, upsell and post purchase offers

What merchants say: Merchants highly recommend this app for boosting Average Order Value through effective upselling, cross-selling, and bundling strategies. They report significant revenue increases and appreciate features like "free gift with purchase." The app is noted for its easy navigation, seamless integration with complex setups, and responsive customer support. It's also valued for consolidating multiple functionalities into one cost-effective platform, with continuous updates adding new features.

324 reviews given by store owners

All In One Upsell app is designed to Boost Sales & AOV & encourage customers to buy more.

What merchants say: Merchants highly recommend this app for its effective upselling features that increase sales and average order values. They value its personalized product recommendations and promotions, free cost, and easy installation. The app integrates well with various themes, offers a user-friendly interface with AI-driven suggestions, and customizable add-ons. Merchants also praise the responsive customer support team for quickly resolving issues.

290 reviews given by store owners