Best Shopify Cart Modification Apps 2026

Cartly Slide Cart Drawer is a powerful app designed to optimize the conversion rate and average order value (AOV) using a CRO expert-developed cart drawer. The app features upsell and cross-sell capabilities within the cart and allows customers to pay over time with providers like Affirm, Klarna, and AfterPay.

• Flexible Payment Options: Integrate payment options like Affirm, Klarna, and AfterPay for installment payments.
• Terms Agreement Checkbox: Complies with payment processor requirements by including an 'I agree to terms' checkbox.
• Sticky Add to Cart Button: A sticky ATC feature that leads customers directly to a one-page checkout for a streamlined experience.
• Optimized Quick Buy Flow: Enhance user experience with a one-click checkout button for faster purchases.
• AI and Manual Upsell Recommendations: Use AI or manual recommendations to upsell products within the cart drawer.

The Cartly Slide Cart Drawer app stands out for its outstanding user experience and exceptional customer service. Reviews highlight its fast implementation and the smooth user interaction it provides, regardless of the task. The app is highly rated for its value for money and efficient support, making it a top choice for enhancing cart functionality.

The Persistent Save Abandoned Cart app ensures that customers never lose their shopping carts, facilitating increased sales and improved customer retention by syncing carts across multiple devices for a seamless shopping experience.

• Cross-Device Sync: Automatically transfers cart items across devices when customers switch, providing a seamless shopping experience.
• Speed and Reliability: Lightning-fast and robust with cart changes updating in less than 1 second.
• Privacy Features: Optionally clears the cart on logout for enhanced privacy and data security.
• 1-Click Setup: Easy installation with instant functionality working seamlessly in the background.
• Cart Merging Functionality: Allows customers to merge carts if logged in while items are already added.

This app is praised for its simplicity, ease of use, and seamless functionality that significantly enhances the shopping experience by allowing customers to shop across multiple devices without losing cart items. Many users appreciate its straightforward installation, robust performance, and exceptional support service, making it a must-have for improving sales and customer satisfaction on e-commerce platforms.

Cart Upsell—Slide Cart Drawer is a powerful tool designed to enhance your store’s sales by providing a smooth cart upsell solution. This app allows customers to seamlessly add notes, apply discounts, and estimate shipping rates without leaving the cart view, aimed at reducing abandoned carts and boosting average order values.

• Customizable Slide Cart: Drag and drop builder to fit any store theme for a personalized shopping experience.
• Dynamic Upsell Features: Includes sale max upsell without disruptive pop-ups, and product recommendations to increase sales.
• Progressive Free Shipping Bar: Encourages customers to add more items to qualify for free shipping, enhancing purchase motivation.
• Product Bundle Discounts: Offers bundle discounts directly within the cart to double profit margins effortlessly.
• Easy Integration: Integrates smoothly with Shopify stores, providing a polished cart experience that retains shopper focus on the product page.

The app’s outstanding advantages, as noted in user reviews, are its smooth integration and transformative improvement of the shopping experience, deemed easy to use even for beginners. The customizable features and responsive customer support contribute to a highly positive customer experience. Moreover, users have consistently reported increases in their average order value, making it a vital addition to their online stores.

Sticky Add To Cart Booster Pro is designed to maximize cart conversions on Shopify stores by ensuring the 'Add to Cart' button remains visible, reducing cart abandonment, and enhancing the user experience. It includes features like Quick Buy and Buy Now buttons, a Sticky Checkout Bar, and an Ajax Slider Cart Drawer for upselling and cross-selling products.

• Sticky Add To Cart Bar: Keeps the 'Add to Cart' button always in view, decreasing the chances of cart abandonment.
• Quick Buy Button: Allows for swift purchases directly from product pages, enhancing convenience and speed for the shopper.
• Ajax Slider Cart Drawer: Facilitates upselling and cross-selling of products, contributing to an increase in average order value (AOV).
• Sticky Checkout Bar: Provides a clear cart overview, improving user experience and assisting in smoother checkouts.
• Quick View: Allows customers to view their cart with ease and proceed to buy instantly with Quick Buy and Buy Now options.

The app's outstanding advantages, as highlighted by reviews, are its ability to significantly reduce cart abandonment rates and seamlessly facilitate swift purchases. Users have noted appreciable increases in cart conversions and average order values, praising the convenience and efficiency offered by the app. The intuitive design makes it a must-have for Shopify stores aiming for enhanced customer experience and improved sales metrics.

SEOAnt ‑ Sticky Add To Cart is designed to enhance the shopping experience by providing convenient mini or floating sticky carts, reducing user friction, and boosting product checkout rates. The app includes features like a sticky add-to-cart banner, real-time urgency countdown timer, and full customization options, driving increased conversions.

• Sticky Cart Options: Choose between a mini shopping cart and a floating sticky cart to simplify the user's shopping process.
• Sticky Add to Cart Banner: Display a prominent banner on your homepage to capture customer attention and encourage more sales.
• Urgency Countdown Timer: Implement a real-time countdown timer to create urgency and drive higher conversions.
• Quick Buy Button: Seamlessly add a quick buy button to reduce abandoned carts and improve the user experience.
• Full Customization: Customize the sticky cart to align with your store's branding for a cohesive look and feel.

The app's outstanding advantages, as highlighted in reviews, include ease of integration, enhanced customer engagement through intuitive design, and a significant reduction in cart abandonment rates, ultimately leading to increased sales and customer satisfaction.

Cart Cloner is a user-friendly app that allows for quick installation and setup of button settings on product pages. It provides additional options like adding to cart, buying now, and checking quantities, all while offering customization for text, color, and animations.

• Quick Setup: Installation and setup for button settings can be done swiftly, saving time for users.
• Flexible Positioning: The button position is customizable and can be set to default or manually adjusted.
• Customization Options: Users can change text, color, and animation to tailor the look and feel of the buttons.
• Enhanced Cart Features: Add to cart, buy it now, and quantity checker options are available directly on the product page.
• Seamless Integration: Buttons are integrated below the product description, ensuring visibility and accessibility.

Reviewers praise Cart Cloner for its ease of use and the efficiency of installation. Users appreciate the customizable features and the enhanced shopping experience for customers. Many have noted the seamless integration and how it improves conversion rates by simplifying the purchasing process.

UpCart is a comprehensive drawer cart builder designed to enhance the shopping experience by providing an intuitive, customizable cart interface that aligns with your brand. It boosts sales through upselling and cross-selling features, and helps to minimize cart abandonment with sticky cart buttons.

• Brand Consistency: Offers customizable cart designs that seamlessly integrate with your site’s branding for a cohesive shopping experience.
• Upselling and Cross-Selling: Includes modules for in-cart promotions to increase average order value (AOV), including free shipping or discount promotion bars.
• Announce Updates: Allows brands to relay important messages and updates directly within the cart interface via announcements.
• Sticky Cart Button: Enhances cart visibility and accessibility, encouraging customers to proceed with their purchases and reducing abandonment.
• Add-On Options: Enables the inclusion of additional products or services, such as shipping insurance, directly within the cart for customer convenience.

Based on user reviews, UpCart is praised for its substantial impact on increasing average order value and its exceptional customer service, making it indispensable for Shopify store owners. Its reasonably priced dynamic cart solution and responsive, expert support team make it a standout tool in ecommerce management.

Libautech: Sticky Add to Cart enhances the shopping experience by allowing customers to add items to their cart or proceed to checkout from anywhere on the product page. With over 40 customizable bar designs that remain visible during scrolling, it aids in boosting conversion rates and simplifying the checkout process.

• Customizable Designs: Offers more than 40 bar designs that ensure the add-to-cart button remains prominent and accessible throughout the shopping experience.
• Streamlined Checkout: Improves conversion rates by enabling customers to easily proceed with their purchase from any point on the product page.
• Mobile and Desktop Optimization: Enhances shopping on both mobile and desktop platforms with sticky bar widget designs.
• User-Friendly Setup: Simplifies installation and customization of the Sticky Add to Cart Bar or Button, making it easy for store owners to implement.
• Analytics Tracking: Provides tracking of views, conversions, and clicks to help businesses monitor the app's impact.

The app consistently receives positive reviews for its intuitive interface and significant impact on conversion rates. Users appreciate its easy setup, customization options, and seamless integration into their existing product pages, noting a noticeable boost in sales and customer engagement.

Slide Cart: Sticky Cart Drawer is a Shopify app designed to enhance the standard shopping cart by transforming it into a sticky cart experience. It features a dynamic cart drawer, fast cart popups, and order management capabilities, simplifying the "Add to Cart" process for online stores.

• Sticky Cart Shopify: Upgrades the default cart to a sticky cart experience, enhancing user engagement.
• Fast Cart Popup: Provides quick access to cart details, improving checkout efficiency.
• Bulk Cart Management: Facilitates bulk order processing with ease, optimizing order management.
• Personalized Cart Messages: Allows customization of messages to customers, fostering better connection and upsells.
• Seamless Cross Cart Experience: Enhances shopping experience by creating smoother transitions between cart and store.

The app is highly praised in reviews for its ease of integration, top-notch customer support, particularly from Anne, and the significant impact it has on reducing cart abandonment rates while improving user experience. Users appreciate the customized features without unexpected fees, and many have noted a direct increase in sales after implementing the app in their stores.

EA • Sticky Add To Cart Upsell is designed to enhance conversion rates with its interactive side cart upsells and visible Add to Cart button. It facilitates seamless shopping experiences by offering features like one-click checkout and a sticky cart that ensures a non-intrusive cart overview on product pages. These features aim to reduce cart abandonment and boost sales by enabling smooth upselling and cross-selling opportunities.

• Sticky Add to Cart Bar: Keep the Add to Cart button always visible to guide customers smoothly towards checkout and reduce cart abandonment.
• Mini Side Cart with Upsell: A convenient, slide-out cart that offers upsell product recommendations without interrupting the shopping flow.
• Quick Buy Button: Allows customers to add items to their cart with a single click from any page, enhancing the speed and ease of the purchasing process.
• Sticky Cart: Ensures that the cart remains visible and easily accessible, allowing customers to view and edit their selections effortlessly.
• One Click Checkout & Extra Features: Streamlines the buying process with features like countdown sale banners and animated prompts, maximizing sales potential.

The app's outstanding advantages, as highlighted by user reviews, include exceptional customer service that addresses custom needs swiftly, extensive customization options, and a user-friendly interface that integrates seamlessly with any theme. Users also appreciate its cost-effectiveness, particularly for small businesses, and the extensive features it offers without additional charges. Overall, EA's sticky cart stands out for its comprehensive design options and ease of use.

Fast Checkout Cart Upsell+Gift is an AI-powered app designed to enhance sales through upselling and cross-selling. It offers features that entice buyers by providing them with an optimized cart experience, real-time analytics, and seamless multi-language support.

• Upsell Cart Drawer: Efficiently encourages additional purchases with an intuitive cart interface.
• Real-time Activity & Analytics: Provides in-depth insights into shopper behavior for data-driven decisions.
• Countdown Deals & Promotions: Creates urgency to improve conversion rates.
• Auto-custom Integration: Easily integrates with third-party apps for a cohesive store experience.
• Multilingual Support: Seamlessly caters to diverse audiences with multi-language capabilities.

Outstanding advantages of the app include its flawless performance in optimizing store operations and exceptional customer support, praised for being friendly and resolving issues promptly, thereby earning high user recommendations.

The Dynamatic Cart & Upsell Engine app aims to boost conversion rates and increase average order value by offering unparalleled personalization. It provides various capabilities, including customizable slide carts, bundles, upsells, and over 50 customizable widgets. With functionality such as AB testing, BOGO, post-purchase upsells, and more, it integrates multiple tools for a comprehensive eCommerce solution.

• Comprehensive Personalization: Over 50 customizable widgets enable highly personalized shopping experiences, from checkout blocks to subscription swaps.
• Advanced Discounting Engine: Uses Shopify Functions to manage complex discount combinations, similar to Shopify Plus functionalities.
• Flexible Campaign Management: Features a building block model that allows for precise control over promotional campaigns and audience targeting.
• Integrated Customer Experience: Combines various sales strategies like BOGO and auto free gifts for a smooth, all-in-one user journey.
• Outstanding Customer Support: Highly praised for its responsive and reliable support team, offering timely solutions to complex issues.

The app's reviews highlight its tremendous flexibility and effectiveness, capable of replacing multiple apps with its all-in-one features. Users commend the top-tier customer support, which is noted for being responsive and helpful even during emergency situations. This makes the app a reliable and transformative tool for Shopify users looking to streamline their operations and boost sales.

Cart Pencil enhances your website by adding an edit cart functionality, allowing customers to modify product variants directly from the cart page, which simplifies the shopping process, reduces cart abandonment, and supports customization to match your site's theme.

• Edit on Cart Page: Customers can edit or change product variants directly from the cart page without having to navigate back to the product page, streamlining the shopping experience.
• Theme Customization: Offers customization options for fonts, colors, and text, enabling the edit cart page to seamlessly integrate with your website's theme.
• Multi-language Support: Allows you to customize the text to support multiple languages, catering to a diverse customer base.
• Ajax Cart Compatibility: Supports edit cart functionality on websites using Ajax cart, ensuring a smooth and efficient process without page reloads.
• Improved Customer Experience: Reduces order completion time and improves the overall shopping experience by minimizing cart abandonment and order returns.

Cart Pencil is praised for significantly improving customer satisfaction, as many reviews highlight its efficiency in reducing cart abandonment and order returns. Users commend the seamless integration with their website's theme and the flexibility in customization, making it a favored choice for enhancing e-commerce platforms.

Enhance your store’s shopping experience with a powerful, customizable cart solution. This app enables you to personalize your cart with dynamic banners, free gift setups, upselling options, and flexible styling controls. Capture order notes, manage discounts, and ensure a seamless checkout process, optimizing sales and engagement through intuitive, functional cart features.

• Customizable Cart UI: Personalize cart design with dynamic banners and styling controls for tailored customer experiences.
• Free Gifts Feature: Offer gifts based on specific products, minimum order quantity, or cart value to incentivize purchases.
• Cart Upsell Options: Enable suggestions of frequently bought together items directly in the cart to increase sales.
• Seamless Offers Discovery: Make discounts visible and easily applicable during the cart process to enhance value perception.
• Order Notes Capture: Allow customers to provide custom notes or special instructions during checkout.

The GoKwik Cart‑Slide Cart Drawer app receives outstanding reviews for its sleek design and versatility, significantly enhancing the cart experience. Users highlight exceptional support from the team, particularly mentioning Prakhar for going above and beyond in the setup and addressing issues. The app is praised as a must-have for any D2C brand seeking to boost conversions and improve the customer checkout journey, catering effectively to numerous use cases with its reliable features.

UpCart: Gift With Purchase provides an efficient solution for online stores to offer free gifts or add extra products to customers' carts based on preset conditions such as purchase quantity or order value. The app simplifies rule setup for promotions and ensures attached products are automatically adjusted according to cart changes.

• Automatic Product Addition: Automatically adds extra products or gifts when specific cart conditions are met, like order quantity or value.
• Flexible Rule Configuration: Allows easy configuration of rules for product addition, making tailored promotions straightforward to implement.
• Automatic Product Detachment: Automatically removes attached products if trigger items are removed from the cart, ensuring accurate order details.
• Prioritization of Rules: Offers the ability to prioritize rules when multiple conditions are met, providing greater control over promotions.
• Scheduled Rule Activation: Includes an option to schedule rules, enabling time-based promotions and campaigns.

Users appreciate the app for its seamless integration and the significant boost it offers to promotional campaigns, facilitating a smooth customer experience with minimal manual intervention. Many reviews highlight its user-friendly interface and the increased sales generated through the effective use of free gift promotions.