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Best free Checkout - Other Shopify apps in 2026 [Updated]
PickYourApp Review Team
6 min read
•
Jul 10, 2026
The best free Shopify checkout apps help merchants customize their payment methods, add cash on delivery options, implement upsells, and optimize the entire checkout experience. From setting COD fees and order limits to displaying product properties and creating one-click checkouts, these tools give store owners complete control over how customers complete their purchases. Whether you need to hide payment options based on conditions, add post-purchase offers, or simplify order cancellations, these free apps provide essential features to improve conversion rates and average order value without any upfront investment.
| Name | Rate on Shopify | Price | Free trial | Key features |
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#1. Validate checkout, add payment, shipping & discount rules, checkout blocks & post-purchase upsells
SMART Checkout Rules & Upsells gives merchants complete control over their checkout experience with flexible validation rules 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. Grow your average order value with one-click post-purchase upsells and downsells that appear after checkout. Add checkout blocks including banners and discount codes with conditional display rules. Apply checkout validation 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. Control your checkout rules and increase conversions with smarter upsell strategies. -
#2. Hide, rename, reorder payment & shipping methods, validate checkout, block PO boxes and set limits.
Kedra Checkout Rules & Upsells gives you complete control over your checkout with no coding required. Hide, rename, reorder, or block payment and shipping methods using over 50 conditions including cart total, product, customer tag, country, weight, and date. Validate checkout to stop PO boxes and prevent fraud while setting order limits. Apply conditional shipping discounts and free shipping offers at checkout. Grow revenue with one-click post-purchase upsells and share pre-filled checkout links and QR codes for instant checkout. Show estimated tax and duties for cross-border shoppers. Set up rules manually or use AI to configure your checkout rules quickly. -
#3. Revolutionized checkout optimization with branded shipping protection, cashback, & climate impact.
Deliver a better post-purchase experience with shipping protection, cashback rewards, and sustainability tracking all in one solution. This eco-friendly checkout platform helps you manage claims efficiently while showing customers their environmental impact through customizable displays and counters. From white-labeled emails to branded claims processing, you can build customer trust and encourage repeat purchases while making a real difference. Track sustainability metrics and claims data directly in your merchant portal, and customize the entire experience to match your brand's unique needs and customer service goals. -
#4. COD Toolkit helps merchants manage and customize the Cash on Delivery option with flexible rules.
COD Toolkit gives you complete control over Cash on Delivery payments in your Shopify store. Create custom rules to manage when and where COD is available based on order values and delivery locations. You can block COD for specific price ranges or regions to reduce payment risks. The app also lets you personalize the COD payment option name to match your store's branding. Whether you want to limit COD availability or offer it selectively, this toolkit helps you set up flexible conditions that work for your business needs. Perfect for merchants who want to offer Cash on Delivery while maintaining control over their payment options. -
#5. Convert your checkout into a conversion engine with custom checkout rules, fields and customizer.
Customize your Shopify Plus checkout with banners, custom fields, and smart checkout rules to improve conversions. This checkout customizer lets you add trust messages and promo code blocks directly at checkout, edit cart items, and collect GST/VAT or custom notes from customers. Hide or reorder payment options using advanced checkout logic to guide shoppers and reduce drop-offs. Built on Shopify Checkout Extensibility, it helps Plus merchants create a clearer checkout experience that converts better. -
#6. Customer account editor and checkout editor with dynamic blocks and extensibility
Customize customer accounts, checkout, and post-purchase pages with flexible UI extensions and dynamic blocks. This app lets you add custom components to account pages, order status, and thank you pages without coding. Add checkout blocks like custom fields, trust badges, payment icons, age validator, and delivery instructions to improve your checkout experience. Include account blocks such as order notes, special requests, download invoice, order count, and report a problem features to strengthen customer communication. The app supports upsell products, SMS consent, gift messages, image with text, proof of shipment, installation guides, warranty documents, announcement bars, and FAQs. You can also add quantity selector and variant selector for checkout line items. Replace legacy limitations with modern extensibility that helps increase engagement and conversions through better checkout and account customization. -
#7. Add warnings for Prop 65 (P65), product availability, shipping delays, note, disclaimer and age gate
Warn helps you add customizable checkout warnings and product page alerts to inform customers about important information. Display Prop 65 warnings, shipping delays, product availability notices, disclaimers, and age gates across your store. Add unlimited warnings to your product pages and checkout that can be targeted globally or to specific products, collections, and countries. Perfect for alerting customers about shipping restrictions, country-specific notices, or compliance requirements. Show warnings as popups or text notes with fully customizable styles, images, and buttons that match your store's design. You can even block the checkout process when critical warnings appear, helping reduce chargebacks, fraud, and customer inconveniences while keeping your store compliant and secure. -
#8. Increase AOV with 1-click checkout upsell funnels, post purchase upsell and thank you page upsell.
Oak Checkout Upsell helps you increase average order value by showing targeted upsell offers at checkout, post purchase, and on thank you pages. For Shopify Plus stores, add checkout upsells before payment to capture more value from every buyer. All customers can use one-click post purchase upsells that don't require re-entering payment details, plus thank you page offers that keep selling after checkout. Create upsell funnels based on purchased products, collections, and order conditions. Choose product or collection-based offers, show the same product from the cart, or use Shopify product recommendations. The clean admin interface makes it easy to set up your first upsell funnel in just minutes. Start growing your AOV today with checkout upsell funnels that buyers find simple to navigate. -
#9. Create One Click Upsell offers to improve AOV with Smart Post Purchase Upsell and Funnels.
ReConv Post Purchase Upsell helps merchants increase their average order value by displaying personalized upsell offers right after checkout. Customers can accept these one-click upsell offers without re-entering their payment information, making the post-purchase experience smooth and convenient. The app uses AI to automatically create smart upsell and downsell offers, or you can build custom offers manually to fit your needs. Merchants can design complete post-purchase funnels and customize their Thank You page to match their store's branding and improve customer engagement. Setup is easy with no coding required. Simply add upsell offers to your checkout flow and start converting more customers with targeted post-purchase upsells that help you sell more and grow your AOV. -
#10. Stop invalid orders before failed deliveries, refunds, or manual fixes.
AOV.ai Checkout Rules & Upsell helps you control what happens at checkout before payment is processed. Stop invalid orders that lead to failed deliveries, refunds, or time-consuming manual fixes. Set checkout rules without any coding to validate addresses and VAT numbers, block unsupported countries with geo restrictions, and enforce order limits. Control which payment methods and delivery methods appear based on cart value, products, or customer tags. Hide COD for high-value orders, rename or reorder shipping options, and apply shipping discounts automatically. Shopify Plus merchants can add checkout upsells, promo codes, trust badges, testimonials, and banners to increase average order value while improving the customer experience with visual widgets that build confidence at checkout.
