Shopify app to customize checkout page: Best Picks 2024

Why Customizing Your Shopify Checkout Page Matters

When looking for a shopify app to customize checkout page, you’ll find several top-rated options that can transform your checkout experience:

Top Checkout Customization Apps:

qikify Checkout Customizer – All-in-one solution with upsells, custom fields, and checkout rules (4.9★)
ReConvert Upsell & Cross Sell – Post-purchase upsells and thank you page editor (4.8★)
Checkout Blocks – No-code customizer for Shopify Plus merchants (4.0★)
Rebuy Personalization Engine – AI-powered product recommendations (4.8★)
Extreme Checkout Customizer – Payment and delivery method customization (5.0★)

Your checkout page is where browsers become buyers. Research shows that checkout customization can increase conversions by up to 15% while boosting average order value through strategic upsells and trust-building elements.

With cart abandonment rates around 70%, a generic checkout process that lacks trust signals is a major liability. Fortunately, Shopify’s new Checkout Extensibility framework has revolutionized how merchants can customize their checkout experience.

Gone are the days of risky checkout.liquid modifications. Today’s checkout apps use Shopify Extensions—upgrade-safe, performance-focused tools that let you add custom fields, upsells, trust badges, and business logic without touching code.

Whether you need to add gift message fields or implement complex discount rules, the right checkout app can transform your conversion rates while maintaining a smooth, professional experience.

As Cesar A Beltran, founder of Blackbelt Commerce and a certified Shopify Plus partner with over 15 years in e-commerce, I’ve helped 1000+ businesses optimize their checkout process. In this guide, I’ll walk you through the top shopify app to customize checkout page solutions that can turn your checkout into a conversion powerhouse.

Key terms for shopify app to customize checkout page:

The New Era of Shopify Checkout: Understanding Checkout Extensibility

Shopify’s Checkout Extensibility framework is a game-changer for merchants seeking the perfect shopify app to customize checkout page. It introduces upgrade-safe customization through an app-based approach, ending the era of risky checkout.liquid modifications that could break with platform updates.

The old checkout.liquid method was powerful but fragile. The new framework eliminates these headaches entirely. Mark your calendar: August 28, 2025 is the final sunset date for checkout.liquid on Thank You and Order Status pages. This is a mandatory transition, but the new system is far superior.

For developers, the Dev docs on how to customize and extend Shopify checkout offer comprehensive guidance. For expert implementation, our team at Blackbelt Commerce has extensive experience with Shopify Checkout Customization.

Checkout UI Extensions: Adding New Features to the Frontend

Checkout UI Extensions add powerful frontend features without complex code. You can add custom fields for gift messages or delivery instructions, display last-minute upsells, or show loyalty points customers can redeem. Our guide on Add Custom Fields to Shopify Checkout details this process.

Information banners are perfect for highlighting free shipping thresholds or announcing promotions. These features create a confident and informed buying experience.

Your Shopify plan matters here. Shopify Plus merchants get full access to UI extensions across all checkout pages (Information, Shipping, Payment, Thank You, and Order Status). Basic, Shopify, and Advanced plans can customize the Thank You and Order Status pages, which is ideal for post-purchase upsells.

Shopify Functions: Customizing Backend Business Logic

While UI extensions manage the frontend, Shopify Functions handle backend business logic. They process complex rules that are impossible with standard settings.

With Functions, you can create sophisticated custom discounts (e.g., “buy three, get one free for VIPs”), build automatic product bundles, and set advanced payment and shipping method rules. This allows you to hide or rename options based on cart contents, customer tags, or order value.

For B2B merchants, Functions open up enterprise-level capabilities like complex pricing tiers and custom payment terms, changing a standard store into a powerful business platform.

Pixels and Analytics: Tracking for Optimization

You can’t improve what you don’t measure. Web Pixels provide the data to optimize every step of the checkout process by securely tracking customer events.

This data is invaluable for analyzing customer behavior. Are customers abandoning carts at the shipping stage? Are certain product combinations converting better? These insights inform your marketing and inventory strategies.

Marketing optimization becomes more precise when you understand the full customer journey. Tools like Elevar Conversion Tracking and Analyzify (GA4 & Ads Tracking) turn raw pixel data into actionable insights, helping you refine ad spend and create effective retargeting campaigns. This tracking integrates with your chosen shopify app to customize checkout page, showing how your changes impact business outcomes.

Top Shopify App to Customize Checkout Page Picks for 2024

With Shopify’s Checkout Extensibility framework, a new generation of sophisticated, upgrade-safe apps has emerged. After helping over 1,000 merchants, I’ve identified the standout performers for 2024.

qikify Checkout Customizer: The All-in-One Powerhouse

For merchants who want to “do everything,” qikify Checkout Customizer is a top recommendation. It combines a user-friendly drag-and-drop editor with powerful sales features.

Key features include in-checkout upsells and cross-sells, versatile custom fields for gift messages or delivery notes, and a robust checkout rules engine for conditional logic (e.g., blocking zip codes). It also allows for trust badges and banners to reduce last-minute hesitation.

With a free plan and a Premium plan at $99/month, qikify is flexible for growing businesses. Its 4.9-star rating from 43 reviews highlights its functionality and support. This shopify app to customize checkout page is best for merchants wanting comprehensive control to maximize sales.

ReConvert Upsell & Cross Sell: The AOV Booster

ReConvert Upsell & Cross Sell excels at capitalizing on the post-purchase moment. Its genius lies in frictionless post-purchase upsells, which customers can accept with a single click without re-entering payment details.

The app’s thank you page editor transforms a standard confirmation page into a revenue hub with related products, future discounts, and built-in surveys. Our guide on How to Customize My Checkout Thank You Page Shopify explores this further.

With tiered pricing starting from a free plan and a 4.8-star rating from over 2,595 reviews, ReConvert is proven to increase average order value. It’s perfect for merchants focused on customer lifetime value.

Checkout Blocks: The No-Code Customizer for Plus

Shopify Checkout Blocks offers a clean, no-code approach that feels native to the Shopify admin. It’s built specifically for the Checkout Extensibility framework.

Its intuitive content blocks system allows you to add text, images, and custom HTML easily. The app also supports custom fields, sophisticated delivery and payment rules, and an address validation feature to prevent shipping errors.

The main caveat is that while the app is free to install, most advanced features require Shopify Plus. With a 4.0-star rating from 127 reviews, it’s a solid choice for Plus merchants seeking simple, powerful customizations.

Other Notable Apps for Specific Needs

Specialized tools can solve specific problems exceptionally well:

Rebuy Personalization Engine: For merchants serious about AI-driven recommendations, Rebuy uses machine learning to personalize the entire shopping journey. (4.8 stars, 749 reviews).
Smile: Loyalty Rewards Program: The gold standard for loyalty, Smile seamlessly integrates points, referrals, and VIP tiers into the checkout. (4.9 stars, ~4,000 reviews).
Extreme Checkout Customizer: Delivers precise payment and shipping rules for free, solving complex requirements simply. (5.0 stars, 3 reviews).
Fairing Post Purchase Surveys: Captures crucial “how did you hear about us?” attribution data right after purchase, helping to optimize marketing spend. (4.9 stars, 188 reviews).

These apps represent the new generation of shopify app to customize checkout page solutions: purpose-built, performance-focused, and designed to grow with your business.

How to Choose and Implement the Right Checkout Customization App

Choosing the right shopify app to customize checkout page requires a clear strategy. Success comes from understanding your goals and knowing what features will achieve them.

Assessing Your Business Needs and Goals

Before browsing the App Store, define your primary objective. Are you trying to:

Increase Average Order Value (AOV)? Look for apps with strong upsell features like ReConvert or Rebuy.
Reduce Cart Abandonment? Prioritize apps that add trust badges and streamline the flow.
Gather Customer Information? Focus on apps with robust custom field capabilities.

Map features directly to your goals and avoid getting distracted by unnecessary bells and whistles. Start small and iterate by implementing one or two key changes, measuring their impact, and then expanding on what works. This data-driven approach is key. For more on this, see our guide on Checkout on Shopify: How to Increase Conversions.

Key Features to Look For in a Shopify app to customize checkout page

When evaluating apps, consider these non-negotiables:

Shopify Plan Compatibility: Advanced customizations on the Information, Shipping, and Payment pages are typically exclusive to Shopify Plus. Non-Plus plans are limited to the Thank You and Order Status pages. Verify an app’s features work with your plan.
“Built for Shopify” Badge: This badge signifies that Shopify has vetted the app for speed, ease of use, and security.
Performance Impact: A slow checkout kills conversions. Choose efficient apps and monitor your site speed after installation.
Support and Reviews: Read recent reviews and note how developers handle feedback. Good support is invaluable.
Integration Capabilities: Ensure the app works with your existing tech stack (email, analytics, etc.). Learn about app compatibility to avoid issues.

Best Practices for a High-Converting Checkout

A great app needs a solid foundation. Follow these best practices:

Simplicity and Clarity: Keep the process straightforward with clear labels and minimal steps.
Build Trust: Prominently display security badges, payment logos, and customer testimonials.
Mobile-First Design: Ensure your checkout is flawless on small screens with large buttons and fast load times.
A/B Test Changes: Use built-in app features or analytics to test everything from button colors to upsell offers.
Offer Multiple Payment Options: Include credit cards, PayPal, Shop Pay, and other popular methods to accommodate all customers.

For more on creating a compelling online presence, explore our thoughts on More info about Shopify Web Design.

Frequently Asked Questions about Shopify Checkout Customization

Here are answers to common questions about using a shopify app to customize checkout page.

Can I customize the Shopify checkout without Shopify Plus?

Yes, but with significant limitations. All Shopify merchants can use the branding editor to change colors, fonts, and logos. You can also fully customize your Thank You and Order Status pages using apps with Checkout Extensions.

However, adding custom fields, upsells, or other functionality to the core Information, Shipping, and Payment pages requires Shopify Plus. This is a key difference and a compelling reason for many businesses to upgrade.

What is happening to checkout.liquid?

checkout.liquid is being phased out. It was a fragile system where customizations could break after Shopify updates. It has already been deprecated for the Information, Shipping, and Payment pages.

The final sunset date for the Thank You and Order Status pages is August 28, 2025. After this, checkout.liquid customizations will stop working. Merchants must upgrade to Shopify Extensions in Checkout before the deadline. The new Checkout Extensibility system is upgrade-safe, more secure, and performs better. You can migrate by choosing a modern app or working with an agency like Blackbelt Commerce.

Will adding a Shopify app to customize checkout page slow down my store?

Any app can potentially impact performance, but the risk is minimal with high-quality apps. A slow checkout hurts conversions, so this is a valid concern.

“Built for Shopify” apps are your safest bet, as they are vetted for performance and security. The main risks come from poorly coded apps or installing too many apps at once.

Our recommendations:

Choose reputable apps with strong reviews and the “Built for Shopify” badge.
Monitor your site speed after installing any new app.
Regularly audit and remove unused apps to reduce digital clutter.

Modern checkout apps built for Checkout Extensibility are generally very efficient, but it’s crucial to be selective and monitor performance.

Conclusion

Your checkout page is where browsers become buyers. The right customization can be the difference between thriving and merely surviving. The shift from checkout.liquid to Shopify’s Checkout Extensibility framework has reimagined what’s possible, offering powerful, upgrade-safe solutions.

Today’s shopify app to customize checkout page solutions use Checkout UI Extensions, Shopify Functions, and Pixels to create bulletproof experiences. Whether you need an all-in-one tool like qikify Checkout Customizer, a post-purchase optimizer like ReConvert, or a no-code solution like Checkout Blocks for Shopify Plus, the right app can transform your conversion rates.

From growing brands in Brooklyn to established retailers in Manhattan, the key is to start with a clear goal, implement thoughtfully, and iterate based on data.

For businesses with complex requirements beyond what standard apps offer, custom development is the answer. At Blackbelt Commerce, we specialize in crafting fully customized, conversion-focused solutions for New York businesses and brands across the US. We turn your checkout into a strategic asset.

The future of e-commerce checkout is flexible and powerful. Whether you choose an off-the-shelf app or a custom build, the tools exist to create the experience your customers need.

Ready to transform your checkout? Learn more about our specialized Shopify Plus services and let’s discuss how we can build a checkout that truly converts. Contact us for a custom solution today.