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Best free Cart customization Shopify apps in 2027 [Updated]
PickYourApp Review Team
6 min read
•
Aug 18, 2026
The Best Free Shopify cart customization apps give merchants essential tools to improve their checkout experience without spending a dime. From one-click order forms and slide cart drawers to upsell features and terms & conditions checkboxes, these apps help increase average order value and conversion rates. Whether you need custom checkout rules, free shipping bars, or reordering capabilities, these free solutions let you tailor the cart experience to match your store's unique needs while building customer trust and encouraging larger purchases.
| Name | Rate on Shopify | Price | Free trial | Key features |
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#1. Hide, sort & rename checkout payment methods based on rules like country, cart value, or shipping.
Take control of your Shopify checkout payment options with ETP Sort & Hide Payment Methods. Customize how payment methods appear by hiding, sorting, or renaming options like PayPal, credit cards, Cash on Delivery (COD), and manual payments. Create specific rules based on shopping cart value, shipping method, customer location, product SKUs, or customer tags. The app lets you show only relevant payment options to different customers without any coding needed. All changes apply instantly to your checkout, making it easier for customers to complete their purchase with their preferred payment method. -
#2. Square Sticky Add to Cart Bar: Never miss a sale by keeping the Add to Cart bar visible on scroll
Square Sticky Add to Cart Bar keeps your Add to Cart button visible while customers scroll through your product pages, helping you capture more sales and reduce cart abandonment. This sticky cart bar stays in view on both mobile and desktop, making it easier for shoppers to complete their purchase without scrolling back up. The app is fully customizable to match your store's design - adjust colors, size, and position to create a seamless shopping experience. Setup takes just 1 minute with no coding required. Built-in analytics let you track clicks, click-through rates, orders, and revenue directly in the app. The sticky bar automatically supports multiple languages and currency conversion, ensuring a smooth buying process for all your customers. -
#3. All In One Upsell app is designed to Boost Sales & AOV & encourage customers to buy more.
Increase your store's sales and average order value with this comprehensive upsell and cross-sell solution. The app lets you create personalized upsell funnels that display targeted product recommendations across multiple touchpoints - from product pages to checkout and thank you pages. Using both AI and manual modes, you can build customized offers based on customer preferences and spending patterns. The easy-to-use customization tools help you design different layouts while the detailed analytics dashboard tracks customer behavior and purchase history. Whether you want to suggest related products or create strategic upsell opportunities, this user-friendly app provides the essential features to encourage customers to add more items to their cart. -
#4. Sales Countdown Timer bar, low stock counter & cart countdown for urgency, FOMO & buy now affect.
This app lets you add countdown timers and low stock counters to your product and cart pages to create urgency and FOMO. The sales countdown timer shows customers how much time they have left to buy, while the stock countdown displays remaining inventory to encourage faster purchasing decisions. Key features include customizable countdown timer bars that match your store's look and feel, low stock counters that establish social proof by showing items are selling fast, and cart countdown timers that motivate visitors to complete their purchase. Setup takes less than 30 seconds with easy customization options for the countdown bar appearance. -
#5. Grow via side cart drawer cart upsell, sticky add to cart bar, free shipping bar & slide cart upsell
This app helps grow your sales with a sticky add to cart bar that keeps the buy button always visible on your product pages. The side cart drawer lets customers view their cart instantly without leaving the page, while AI-powered cart upsell and cross sell features recommend additional products to increase average order value. The slide cart works like popular apps such as UpCart, iCart, and Opus, offering one click checkout for faster purchases. A free shipping bar shows progress toward discounts and rewards, encouraging customers to add more items. Quick buy buttons let shoppers add to cart with a single click from any page, speeding up the buying process and driving direct sales. The sticky cart drawer stays visible so customers can easily track their selections while browsing. -
#6. Add a terms & conditions checkbox. Protect your business by requiring the acknowledgment of rules.
Protect your online store with a customizable terms and conditions checkbox on your cart page. Customers must acknowledge your rules before proceeding to checkout, ensuring clear agreement with your business terms. When customers don't check the box, they'll see your personalized alert message and won't be able to continue. The app automatically records the date and time of each customer's agreement in the order's Additional Details section, helping you maintain proper documentation. Choose from various animated checkbox styles and easily position the checkbox where you want it using the visual placement tool. The popup alert system ensures customers don't miss this important step, making compliance both user-friendly and effective. -
#7. Show an automatic discount based on what payment method has been selected
Offer smart payment method discounts to reduce cart abandonment and increase sales. This app automatically shows discounts when customers select specific payment options like iDEAL, PayPal, bank transfers, credit cards, digital wallets, or cryptocurrencies. Simple three-step setup works with any Shopify theme. Guide customers toward preferred payment methods while improving their shopping experience. Support for major payment providers including Apple Pay, Google Pay, Klarna, Afterpay, SEPA, Sofort, Bancontact, and more helps you optimize transaction costs and conversion rates. Perfect for stores looking to encourage specific payment choices through targeted discounts. -
#8. Upgrade your cart with smart upsells, rewards, and a high-converting cart drawer
Snap Cart Drawer Cart Upsell is an all-in-one cart drawer builder that helps upgrade your cart with smart upsells, rewards, and high-converting features. This slide cart app lets you add cart upsells, product add-ons, free gifts, tiered progress bars, free shipping rewards, discounts, countdown timers, gift wrapping, and shipping protection to increase AOV and reduce cart abandonment. Customize your cart drawer with multiple designs that match your store theme. The sticky cart button and floating cart icon improve visibility and make cart access easy for shoppers. Build buyer trust with trust badges, shipping details, and required terms & conditions agreement. Add custom HTML/CSS for advanced customization and create multiple carts for different markets and customer groups. The mini cart feature supports a smoother shopping experience while reward bars and progress bars encourage customers to add more items to their cart. -
#9. Ease shipping headaches, increase revenue, elevate your customer checkout experience.
ShipInsure provides comprehensive shipping protection that safeguards your orders from loss, damage, or theft - all at zero cost to merchants. Give your customers confidence during checkout with reliable order coverage that extends until delivery. When shipping issues occur, our smart technology and dedicated support team quickly process claims, handling refunds or reorders directly through your store. This shipping protection service helps reduce support costs while creating additional revenue through flexible pricing options. With fast claims resolution and complete order coverage, ShipInsure helps build customer trust and satisfaction throughout the delivery journey. -
#10. Impress customers w/ outstanding Sticky Add to Cart, buy now button that they can’t resist clicking
Wi Buy Now: Sticky Add to Cart helps you create eye-catching sticky add to cart buttons and buy now buttons that encourage customers to complete their purchases. The app provides multiple ready-to-use button templates including Add to Cart, Buy Now, Sticky ATC, and Quick Add options designed following proven ecommerce practices. Choose from stunning button designs featuring cart icons and discount badges to improve cart visibility on your product pages. Install buttons instantly or customize them to match your store's style and theme. The quick add to cart functionality creates a smooth shopping experience that makes it easy for customers to add items without interrupting their browsing.
