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Custom code Shopify Apps

Discover the best Custom code apps for your Shopify store in 2026. Compare features, pricing, and reviews to find the perfect solution.

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We've analyzed thousands of custom code apps to identify the top performers based on ratings and install counts.

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Build optimized landing pages to improve conversion rates on your paid marketing, email, and sms. Unstack is now Elastic Path Studio! Start converting more browsers into buyers with high converting landing pages that are personalized using your Klaviyo data. Elastic Path Studio also comes with high quality technical marketing support to help your brand quickly maximize results. Stop sending traffic to your product and collection pages and start sending it to pages designed to convert sales. Unstack is now Elastic Path Studio! Start converting more browsers into buyers with high converting landing pages that are personalized using your Klaviyo data. Elastic Path Studio also comes with high quality technical marketing support to help your brand quickly maximize results. Stop sending traffic to your product and collection pages and start sending it to pages designed to convert sales. more Easy to build, high-converting landing pages for paid, email, and SMS campaigns. Bring Klaviyo data into the on-site experience to personalize what shoppers see. A/B testing and powerful integrations to optimize and grow faster.

5.0(Reviews)

eLoyalty: Expand your Email & SMS marketing list with popups to create your sales. How to get more customers is one of the biggest challenges in e-commerce. EasyBP puts it all at your fingertips with features like popups offering discounts to create your email & SMS marketing list, retain exit intent, and create leads. These popups are fully customizable to match your brand. Subscribers will be automatically added to Shopify, allowing EasyBP to integrate seamlessly with any Shopify marketing app. EasyBP works out of the box without requiring a single line of code. How to get more customers is one of the biggest challenges in e-commerce. EasyBP puts it all at your fingertips with features like popups offering discounts to create your email & SMS marketing list, retain exit intent, and create leads. These popups are fully customizable to match your brand. Subscribers will be automatically added to Shopify, allowing EasyBP to integrate seamlessly with any Shopify marketing app. EasyBP works out of the box without requiring a single line of code. more Expand your email & SMS list with opt-in pop-ups or email sign-up forms. Retain potential customers using exit intent pop-ups or spin-the-wheel games. Create conversions through fully customizable pop-up discounts. Customize popup designs to match your brand with an easy-to-use editor. Integrate seamlessly with Klaviyo, Mailchimp, SMSBump, Privy, and more.

0.0(Reviews)

Email marketing done for you. Automations, Reviews, Chatbot, Wishlist & Popups in one dashboard Automate your email marketing with done-for-you email automations. EmailWish sets up & manages your email flows, so you never have to write emails, build workflows or manage multiple tools. Launch high-converting email automations in minutes. From abandoned cart to post-purchase, every flow is prebuilt, tailored to your brand & optimized for revenue. EmailWish combines email, newsletters, reviews, chat, Wishlist & popups in 1 platform to capture leads, engage customers & increase conversions. Automate your email marketing with done-for-you email automations. EmailWish sets up & manages your email flows, so you never have to write emails, build workflows or manage multiple tools. Launch high-converting email automations in minutes. From abandoned cart to post-purchase, every flow is prebuilt, tailored to your brand & optimized for revenue. EmailWish combines email, newsletters, reviews, chat, Wishlist & popups in 1 platform to capture leads, engage customers & increase conversions. more Done-for-you email automations. Zero setup, fully managed for you. Email flows customized for your store and products. Ready-to-send flows for abandoned cart, welcome, post-purchase & more. Email, newsletters, reviews, live chat, chatbot & popups in one platform. Recover abandoned carts, win back customers & boost repeat sales.

4.1(Reviews)

Grow your email list and boost sales with a fun, gamified discount popup shoppers actually enjoy. Standard email popups get ignored. This one gets played. Shoppers catch your branded items to unlock a discount, so they opt in because they want to. Use it to grow your email list, run exit-intent offers, and turn visitors into buyers. Everything is customizable to match your brand, and built-in A/B testing compares game styles, rewards, and triggers to find what converts. A fresh alternative to spin-the-wheel popups, with an anti-cheat engine and optional leaderboard to keep it fair. Standard email popups get ignored. This one gets played. Shoppers catch your branded items to unlock a discount, so they opt in because they want to. Use it to grow your email list, run exit-intent offers, and turn visitors into buyers. Everything is customizable to match your brand, and built-in A/B testing compares game styles, rewards, and triggers to find what converts. A fresh alternative to spin-the-wheel popups, with an anti-cheat engine and optional leaderboard to keep it fair. more Grow your email list with a popup shoppers actually want to engage with Offer limited-time discount codes to turn engagement into sales Trigger on exit intent to win back visitors before they leave Customize colors, items, and rewards to match your brand A/B test game styles and triggers, with an anti-cheat engine built in

5.0(Reviews)

Add Discount Pop-Ups, Spin the Wheel PopUps, Email PopUp, Sales PopUp to build FOMO & boost sales. Promote Sales with popups like email pop-ups, image popup, promo popup, newsletter popup, and sms popup options. Drive urgency using a countdown popups or spin the wheel popup (spin to win popups) and maximize revenue with an upsell popup, cross sell popup, or triggered Add to Cart PopUps. Capture leads via a welcome popup or pop up email, and reduce abandonment with an Exit intent email pop up window or Exit pop up. Sync email capture to Klaviyo, Mailchimp, Omnisend, Brevo or Webhooks. Promote Sales with popups like email pop-ups, image popup, promo popup, newsletter popup, and sms popup options. Drive urgency using a countdown popups or spin the wheel popup (spin to win popups) and maximize revenue with an upsell popup, cross sell popup, or triggered Add to Cart PopUps. Capture leads via a welcome popup or pop up email, and reduce abandonment with an Exit intent email pop up window or Exit pop up. Sync email capture to Klaviyo, Mailchimp, Omnisend, Brevo or Webhooks. more Upsell Popups: sell more with pop-ups which promote products. Spin Wheel PopUps: Gamify lead capture and promote sales. Discount PopUp: Offer discounts (volume discounts in pop-ups and collect emails Email PopUps: Collect emails and build email lists to promote sale and offers. Countdown PopUps: Add Urgency & FOMO to boost sales popup.

4.9(Reviews)

Create unlimited volume, BOGO, gift, upsell, and post-purchase discounts to boost sales and AOV. Engines allows merchants to create various discount codes, including volume, product, bulk, tiered, cart, BOGO, buy X get Y, and free gift discounts. Enable B2B/wholesale discounts with easy customization to match your brand's design. Increase your store's sales and average order value by adding sitewide, product, and collection page discounts. This comprehensive app supports diverse discount strategies to boost sales and customer satisfaction, making it an essential tool for any merchant. Engines allows merchants to create various discount codes, including volume, product, bulk, tiered, cart, BOGO, buy X get Y, and free gift discounts. Enable B2B/wholesale discounts with easy customization to match your brand's design. Increase your store's sales and average order value by adding sitewide, product, and collection page discounts. This comprehensive app supports diverse discount strategies to boost sales and customer satisfaction, making it an essential tool for any merchant. more Create and showcase quantity breaks and discounts to boost store sales. Product discounts, collection discounts, cart discounts, and group discounts. Boost AOV with BOGO, tier discounts, quantity discounts, and free gifts. Create Buy X for $, Buy X get Y, and Spend X get Y offers to attract customers. Offer B2B/wholesale discounts to attract bulk buyers and increase total sales.

4.6(Reviews)

18+ Age Verification Popup compliance tool prevents underage visitors from accessing your website Ecom Trend Age Verification Popup Elite app restricts underage visitors entering your Shopify store with a date of birth (DOB) verification. You can set the minimum age limit to access the website like 18+ or 21+ to ensure legal compliance and protection. Customize the popup in line with your store branding and theme. You can prevent underage access on entire website or specific pages. The app is fully responsive and functional on all devices and themes. No coding required. Ecom Trend Age Verification Popup Elite app restricts underage visitors entering your Shopify store with a date of birth (DOB) verification. You can set the minimum age limit to access the website like 18+ or 21+ to ensure legal compliance and protection. Customize the popup in line with your store branding and theme. You can prevent underage access on entire website or specific pages. The app is fully responsive and functional on all devices and themes. No coding required. more Set minimum age requirement with Date of Birth (DOB) Verification. Restrict all pages or specific pages. Use the preset age popup templates or customize with your store branding. Fully functional and responsive on all devices with no coding required. Use the Age Verification Popup app to ensure 18+ legal compliance.

5.0(Reviews)

Get Compliant, Add a Cookie notice to your Shop. The "Europe Cookie Notice" App lets you add a notice to your store that informs your customers that your Store uses cookies. All Shopify Stores use cookies for statistics, basic functionality or even trackers and according to European laws, websites must inform their customers that they are using cookies. Our app helps you fulfill this by allowing you to add a cookie notice bar for European customers (or all customers if you wish). The "Europe Cookie Notice" App lets you add a notice to your store that informs your customers that your Store uses cookies. All Shopify Stores use cookies for statistics, basic functionality or even trackers and according to European laws, websites must inform their customers that they are using cookies. Our app helps you fulfill this by allowing you to add a cookie notice bar for European customers (or all customers if you wish). more Get compliant with the "European Cookie Law". Easily and fully customize the notice bar. Option to show notice to European customers only.

0.0(Reviews)

Boost AOV with Advanced Automatic Discounts such as Tiered, Bundled Offers. Every Possible Discount is an automatic discount app for Shopify. Easily set up discounts such as BOGO offers, tiered pricing, bundles, gifts, volume discounts & discount codes. Create any discount that best matches your promotion strategy & customize offers using metafields and apply discounts directly at checkout without any coding. Built by Seventh Triangle, it supports upsell logic, helping brands boost conversions, AOV, and loyalty with precise control and high flexibility. Every Possible Discount is an automatic discount app for Shopify. Easily set up discounts such as BOGO offers, tiered pricing, bundles, gifts, volume discounts & discount codes. Create any discount that best matches your promotion strategy & customize offers using metafields and apply discounts directly at checkout without any coding. Built by Seventh Triangle, it supports upsell logic, helping brands boost conversions, AOV, and loyalty with precise control and high flexibility. more Offer Volume, Bundled, Tiered Discounts, or simply run BOGO offers. Offer Buy X Get Y for $Z or convert Buy X Get Y into a tiered discount. Offer discounts on either the selling or the compare-at price. Target discounts to specific markets such as the UK, USA, UAE, etc. Offer discounts on specific cart line item attributes.

5.0(Reviews)

Show exit pop-up when users try to leave. Offer discounts and grow your email list instantly. Don’t let visitors leave without action. Improve retention and sales with one simple tool. Display targeted discount popups when visitors show intent to leave your store. Great for growing email lists, recovering lost sales, promoting newsletter signups, upselling products, or announcing limited-time deals. Choose from built-in templates, customize to match your store needs. Show popups anywhere on your site, sync with email marketing platforms, and drive results - no technical skills required. Don’t let visitors leave without action. Improve retention and sales with one simple tool. Display targeted discount popups when visitors show intent to leave your store. Great for growing email lists, recovering lost sales, promoting newsletter signups, upselling products, or announcing limited-time deals. Choose from built-in templates, customize to match your store needs. Show popups anywhere on your site, sync with email marketing platforms, and drive results - no technical skills required. more Use ready-made exit-intent popup templates or create your own in minutes. Customize pop up exit design, colors, fonts, and messaging to match your brand. Trigger custom popup exit intent precisely as users try to leave your store. Display discount popup with coupon codes to convert abandoning visitors. Collect emails and newsletter sign ups with exit intent pop up.

3.8(Reviews)

Improve your sales by creating international strategies with bulk discounts or discount codes. If you need to create different discounts by country or market, we have the solution you were looking for. Create bulk discounts by setting rules by product type, tags, stock, and much more and schedule your discounts. Additionally, you can exclude products and set a fixed price. But that's not all, you can create native Shopify discounts: order, product, and free shipping segmented by country. Finally, the best part, you can decide if you want your discount code to apply to our bulk discounts. If you need to create different discounts by country or market, we have the solution you were looking for. Create bulk discounts by setting rules by product type, tags, stock, and much more and schedule your discounts. Additionally, you can exclude products and set a fixed price. But that's not all, you can create native Shopify discounts: order, product, and free shipping segmented by country. Finally, the best part, you can decide if you want your discount code to apply to our bulk discounts. more Schedule your bulk discounts or exclusive discount codes by market or country. Apply them to collections, tags, specific products, or the entire store. Integrates with Shopify Markets and multicurrency support. Create native discounts for orders, products, or free shipping by market. Exclude your discounts on products that already have a compare at price.

2.1(Reviews)

Win AI search visibility with AEO and reach more AI shoppers on ChatGPT, Claude, Gemini & more Fiidom AEO helps your store get discovered and recommended by AI-powered search systems. It generates and maintains AI-friendly files - llms.txt, llms-full.txt, agents.md, and Markdown - so ChatGPT, Claude, Gemini, Perplexity & more understand your products, collections, blogs, and pages. Auto-update Markdown files as content changes to strengthen visibility. Apply bulk AI content optimization to save time while keeping your store clear, consistent, and ready for AI-driven shopping. Fiidom AEO helps your store get discovered and recommended by AI-powered search systems. It generates and maintains AI-friendly files - llms.txt, llms-full.txt, agents.md, and Markdown - so ChatGPT, Claude, Gemini, Perplexity & more understand your products, collections, blogs, and pages. Auto-update Markdown files as content changes to strengthen visibility. Apply bulk AI content optimization to save time while keeping your store clear, consistent, and ready for AI-driven shopping. more Generate AI discovery files such as llms.txt, llms-full.txt, and agents.md Manage AI-friendly markdown files for products, collections, blogs, and pages Improve how AI systems discover and understand your store content Keep AI-readable files optimized with an instant health audit Scale faster with AI bulk content for better engagement and SEO performance

4.7(Reviews)

Add a professional library of curated sections to any theme. I built Flexi because I was tired of rebuilding the same sections for every client project. Other libraries fell short. They were either too slow, too branded, or too much junk in the theme. So I built the one I actually needed. Sections and blocks that connect to metafields from day one, dev mode for full control, and a tiny footprint that passes PageSpeed every time. Three years. Five versions. Flexi is the app I needed all along. I built Flexi because I was tired of rebuilding the same sections for every client project. Other libraries fell short. They were either too slow, too branded, or too much junk in the theme. So I built the one I actually needed. Sections and blocks that connect to metafields from day one, dev mode for full control, and a tiny footprint that passes PageSpeed every time. Three years. Five versions. Flexi is the app I needed all along. more Works with any Shopify 2.0 theme — Dawn, Horizon, Sense, or any custom theme Passes PageSpeed — all sections pass Google PageSpeed Insights Metafields just work — connect dynamic data to any section without writing code Dev mode — add CSS classes, custom styling, and metafield logic Tiny footprint — only sections, blocks, and one minified CSS file are installed

4.9(Reviews)

App provides Upsell based Cart Drawer | Popup | Progress Shipping bar | Discount | Agree Terms "Flying Cart Slide Drawer" Replaces traditional cart pages with a side-sliding drawer or popup with your cart items  and keeping shoppers on the same page. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell.  You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. "Flying Cart Slide Drawer" Replaces traditional cart pages with a side-sliding drawer or popup with your cart items  and keeping shoppers on the same page. The app also includes the functionalities of Progress Shipping Bar, Discounts, Agree Terms, Upsell.  You can rely on the app for hassle free experience for your users to see there products in cart anytime on your site and checkout at the same time. It also includes animated checkout button in cart drawer which will attract users attention. more Creates a customizable Slide Cart designed to increase average order value (AOV) Update cart through Cart Drawer and easy checkout option | Fully Customization Free Shipping Progress Bar with indicating amount left for free shipping Promo Code for adding discount coupon on slide cart only Announcement bar | I Agree To Cart Terms | Upsell | Cart Notes

4.8(Reviews)

Surprise customers and drive sales with automatically added gifts & products! Boost your Average Order Value (AOV) with auto add gift to cart, free products, gift with purchase, automatic free gifts. Automatically add product to cart based on cart value, products, tags, collections, and other triggers. Run personalised promotions by customer segments, geolocation, and total spend. Customise widgets like popups, sticky bars, and banners. Track performance with advanced analytics to optimise your store’s sales strategy. Boost your Average Order Value (AOV) with auto add gift to cart, free products, gift with purchase, automatic free gifts. Automatically add product to cart based on cart value, products, tags, collections, and other triggers. Run personalised promotions by customer segments, geolocation, and total spend. Customise widgets like popups, sticky bars, and banners. Track performance with advanced analytics to optimise your store’s sales strategy. more Auto add gift to cart by cart total, quantity, product, collection, tag and more Free gift with purchase: set the gift or let the customer choose it in cart Hidden offers via secret link for influencers, social media ads, VIP customers Popup, banner, and sticky bar widgets show progress to the next free gift Analytics on impressions, gift adoption, and orders to see what lifts AOV

4.8(Reviews)

Make your customers advertise for you. The "Follow for Discount" an App lets you add a "Get a Discount" button to your store. When clicked, a discount box will be shown to your customers offering them a discount in exchange of liking your Facebook Page or following you on Twitter. After liking/following you the customer will get a Coupon Code that can be used during the Checkout process. The "Follow for Discount" an App lets you add a "Get a Discount" button to your store. When clicked, a discount box will be shown to your customers offering them a discount in exchange of liking your Facebook Page or following you on Twitter. After liking/following you the customer will get a Coupon Code that can be used during the Checkout process. more Let Your customers Advertise your store for You! Easily customize the Discount Box to fit your store perfectly Increase your Social Visibility effectively

1.8(Reviews)

You have seconds to engage visitors. Display Fomo social proof to build trust, urgency, and revenue. Convert paid traffic into sales with social proof that drives results. Display pop-up or on-page messages for recent purchases, add-to-cart events, and product page visits, along with product reviews that build instant trust. Inspire urgency with low stock alerts & limited offer announcements. Fomo integrates with 100+ apps & takes minutes to set up. Our metrics show you what drives the most sales. Our goal: Fomo pays for itself in sales conversions. Contact our team for a 1:1 setup. Convert paid traffic into sales with social proof that drives results. Display pop-up or on-page messages for recent purchases, add-to-cart events, and product page visits, along with product reviews that build instant trust. Inspire urgency with low stock alerts & limited offer announcements. Fomo integrates with 100+ apps & takes minutes to set up. Our metrics show you what drives the most sales. Our goal: Fomo pays for itself in sales conversions. Contact our team for a 1:1 setup. more Social Proof That Converts: Recent sales, visitor count, reviews & social shares Communicate urgency with popups, inline PDP messages/browser push notifications 100+ App Integrations: Works with Klaviyo, Mailchimp, Google Analytics + Webhook Multi-language support: Create sales popups in English, French & 27+ languages ROI Analytics: Track clicks, conversions & revenue by each notification type.

4.5(Reviews)

Add Google Forms or Typeform pop-ups to your site the easy way Get info you need from visitors without reinventing your Shopify site! FormPopper lets you to create Google Forms or Typeform popups to collect info and data without fuss. To see it in action visit our demo store. Get info you need from visitors without reinventing your Shopify site! FormPopper lets you to create Google Forms or Typeform popups to collect info and data without fuss. To see it in action visit our demo store. more Add pop-ups fast, across your site or on one page Integrates with Google Forms or Typeform Set-up surveys, quizzes or collect feedback

5.0(Reviews)

Marketing automation: email, SMS & WhatsApp journeys, ads, popups and product recommendations FORTVISION is a marketing automation platform with advertising, email, SMS, WhatsApp journeys, product carousels, and on-site popups that enables businesses to automate and optimize their marketing efforts across multiple channels. The platform provides tools for creating and managing online ads, personalized email campaigns, SMS and WhatsApp messaging, and on-site product recommendations and popups, all designed to engage customers and drive sales. FORTVISION is a marketing automation platform with advertising, email, SMS, WhatsApp journeys, product carousels, and on-site popups that enables businesses to automate and optimize their marketing efforts across multiple channels. The platform provides tools for creating and managing online ads, personalized email campaigns, SMS and WhatsApp messaging, and on-site product recommendations and popups, all designed to engage customers and drive sales. more Promote ad campaigns on Google, Facebook and Instagram based on user activity Create marketing automation journeys such as abandoned cart series Email, SMS & WhatsApp marketing messages, dynamic product carousels

0.0(Reviews)

AI page builder for industry CRO. Build sales-ready landing page, product page, section, fast & easy Foxify AI landing page builder helps you launch sales-ready pages, tailored to your industry: Homepage, Landing page, Product page, Collection page, Lookbook, Blog, About us & more. Build, edit & launch with AI Layout Generator, 250+ high-converting page & section templates across industries, and a no-code drag-and-drop visual store builder. Fox Magic AI writes, translates & optimizes branded SEO-friendly content. Boost conversion with built-in upsell, cross-sell & review features. 24/7 support. Foxify AI landing page builder helps you launch sales-ready pages, tailored to your industry: Homepage, Landing page, Product page, Collection page, Lookbook, Blog, About us & more. Build, edit & launch with AI Layout Generator, 250+ high-converting page & section templates across industries, and a no-code drag-and-drop visual store builder. Fox Magic AI writes, translates & optimizes branded SEO-friendly content. Boost conversion with built-in upsell, cross-sell & review features. 24/7 support. more 250+ CRO templates by niche: landing page, product page, homepage, and sections AI website builder suite: AI Layout Generator, AI content, AI responsive & more Design capabilities: Free-form page builder, Figma design & HTML import plugins Advanced features: Page analytics, SEO checker, lightning page speed, Pan & Zoom Built-in & integrations: Upsell, cross-sell, BOGO, wishlist, reviews, email, SMS

4.8(Reviews)

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About Custom code Apps for Shopify

Custom code apps are essential tools for Shopify merchants looking to enhance their store's functionality and improve customer experience. These specialized applications help store owners streamline operations, increase sales, and provide better service to their customers.

When choosing a custom code app for your Shopify store, consider factors such as features, pricing, customer support, and compatibility with your theme and other apps. Reading reviews from other merchants can also provide valuable insights into the app's performance and reliability.

The apps listed on this page represent some of the best custom code solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.