Type one sentence. AI builds your contact form or survey — fields, pages, logic — in 30 seconds. AI Form Builder replaces hours of drag-and-drop form building with one sentence. Describe what you want to ask, and the AI writes a complete contact form, survey, feedback or NPS form: the right field types, multi-page layout, conditional logic and a thank-you message, in your store's language. Edit by typing a change and review it before it applies. 21 field types, from star rating to file upload. Responses are stored encrypted, with completion analytics and CSV export. Zero impact on speed. AI Form Builder replaces hours of drag-and-drop form building with one sentence. Describe what you want to ask, and the AI writes a complete contact form, survey, feedback or NPS form: the right field types, multi-page layout, conditional logic and a thank-you message, in your store's language. Edit by typing a change and review it before it applies. 21 field types, from star rating to file upload. Responses are stored encrypted, with completion analytics and CSV export. Zero impact on speed. more Build contact forms & surveys from one sentence — ready to publish in 30 seconds Edit with words: AI rewrites the form, you review every change before it applies 21 field types incl. star rating, NPS, file upload, date, country & dropdowns Conditional logic & multi-page forms show follow-up questions only when relevant Track completion & drop-off, read responses in-app, export answers to CSV
Custom CSS Shopify Apps
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AI size recommender with personalized size recommendations. Reduce Returns, Increase Conversions. AI Fit Finder is an AI size recommender that gives shoppers personalized size recommendations for all types of clothing and footwear in a few clicks. Use it as a size advisor and AI size guide, with ready-made size chart templates so customers buy the right size with confidence. Add product-specific sizing across your catalog. The AI size recommendation engine reduces returns, lifts conversions, and improves satisfaction. One-click setup, multi-language, and analytics. Reduce Returns, Increase C AI Fit Finder is an AI size recommender that gives shoppers personalized size recommendations for all types of clothing and footwear in a few clicks. Use it as a size advisor and AI size guide, with ready-made size chart templates so customers buy the right size with confidence. Add product-specific sizing across your catalog. The AI size recommendation engine reduces returns, lifts conversions, and improves satisfaction. One-click setup, multi-language, and analytics. Reduce Returns, Increase C more Personalized size recommendations from simple inputs like height, weight, age. AI fit finder for precise size predictions across clothing and footwear. Pre-built size chart templates plus a customizable AI size guide. Product-specific size recommendations for consistent fit across your catalog. Multi-language size recommender with unit conversion and analytics dashboard.
Cooee reads each visitor's buying intent in realtime & personalises their journey, homepage to cart Cooee is the AI-powered personalization app that reads buying intent in real-time and delivers the right experience to each visitor, whether they're just browsing, about to buy, or ready for repurchase. Unlike other apps that only tackle one part of the funnel, Cooee works across entire journey Homepage & collections - Product recommendations carousels based, bundles Product pages - Frequently bought together, shoppable videos, abandoned carts Cart - Upsell/cross-sell Dynamic landing pages Cooee is the AI-powered personalization app that reads buying intent in real-time and delivers the right experience to each visitor, whether they're just browsing, about to buy, or ready for repurchase. Unlike other apps that only tackle one part of the funnel, Cooee works across entire journey Homepage & collections - Product recommendations carousels based, bundles Product pages - Frequently bought together, shoppable videos, abandoned carts Cart - Upsell/cross-sell Dynamic landing pages more Analyses every source of incoming traffic to identify funnel leakages Realtime segment visitors as per buying intent - low/medium/high 1-to-1 personalised popup's with video, bundles, widgets, upsell/cross sells, A/B testing, dynamic discounting, announcement bars, social proof, gift and cart
Improve your conversions, AOV, and customer retention using AI-driven product recommendations Aqurate Personalize helps eCommerce shops increase conversion rate, average order value, and customer rebuy rate by offering visitors a personalized online shopping experience. Using AI-driven technology, Aqurate delivers highly targeted product recommendations, based on visitor interactions with the shop. Frequently bought together, upsell, similar, and smart discount bundles can be displayed on the website (product detail page, cart) or sent by email. Aqurate Personalize helps eCommerce shops increase conversion rate, average order value, and customer rebuy rate by offering visitors a personalized online shopping experience. Using AI-driven technology, Aqurate delivers highly targeted product recommendations, based on visitor interactions with the shop. Frequently bought together, upsell, similar, and smart discount bundles can be displayed on the website (product detail page, cart) or sent by email. more Automatically personalize the user journey based on preferences and behaviour Increase your Conversion Rate and AOV and decrease Customer Acquisition Cost Upsell, cross-sell, alternative items widgets, and smart bundles with discounts Fully automated recommendations that take into account stock and new products Advanced merchandising rules to promote specific products or collections
Boost sales with bundles and AI product recommendations at product, cart, checkout & thank you page. Increase your store’s revenue with powerful upsell tools. Create product bundles and show AI-driven recommendations on the product page, cart, checkout, and thank you page. Personalize the shopping experience, boost average order value, and convert more customers at every stage of the buyer journey. Easy to set up, fully customizable, and designed to fit seamlessly into your store’s theme. Increase your store’s revenue with powerful upsell tools. Create product bundles and show AI-driven recommendations on the product page, cart, checkout, and thank you page. Personalize the shopping experience, boost average order value, and convert more customers at every stage of the buyer journey. Easy to set up, fully customizable, and designed to fit seamlessly into your store’s theme. more Tracking performance with insights - Clicks, Add to cart, Purchase, Conversions AI-powered product suggestions to boost sales and profits faster Easily match your store's design - full layout and style customization
Reduce ring sizing returns with AI. Customers measure via photo, right on your product page Help customers find their perfect ring size with AI-powered photo measurements — reducing sizing errors and returns for your jewelry or jewellery store. Aitaca adds a "Find My Size" button to your product pages. Customers take a quick photo of their hand with a standard sized card for scale, and our AI instantly recommends the perfect size — no guesswork needed. Easy 2-minute setup, no coding required. Perfect for online stores selling rings, engagement rings, wedding bands or smart rings. Help customers find their perfect ring size with AI-powered photo measurements — reducing sizing errors and returns for your jewelry or jewellery store. Aitaca adds a "Find My Size" button to your product pages. Customers take a quick photo of their hand with a standard sized card for scale, and our AI instantly recommends the perfect size — no guesswork needed. Easy 2-minute setup, no coding required. Perfect for online stores selling rings, engagement rings, wedding bands or smart rings. more Photo-based: shoppers take a photo of their hand to get the size recommendation Dynamic results table showing top 3 sizes for each finger International size settings (US, UK, EU, Spain) & Custom size chart support Desktop-to-mobile QR sync for seamless cross-device experience
Boost your sales with AI search, smart product filters, and dynamic product merchandising tools. Improve your store’s search and filter experience with AI-powered solution that understands shopper intent and delivers relevant results faster. Smart search, autocomplete, and customizable filters help customers navigate your catalogue, find what they need with ease, and enjoy a smoother shopping journey. Intelligent product ranking and flexible merchandising give you greater control over search results, helping customers make confident purchase decisions and driving more conversions. Improve your store’s search and filter experience with AI-powered solution that understands shopper intent and delivers relevant results faster. Smart search, autocomplete, and customizable filters help customers navigate your catalogue, find what they need with ease, and enjoy a smoother shopping journey. Intelligent product ranking and flexible merchandising give you greater control over search results, helping customers make confident purchase decisions and driving more conversions. more Advanced Product Filter: Filters by tag, option, metafield, metaobject & more AI Smart Instant Search: Predictive search with NLP and typo tolerance Keyword search & Semantic search, Search synonym, Search by SKU, Year/Make/Model Smart Merchandising: Boost, bury, or hide products by campaign or customer group Advanced analytics: Search and filter insights that drive better decisions
Answer FAQs with a chatbot. Take over conversations in a shared customer support inbox. Bring storefront conversations into a shared support inbox. Set up keyword-based FAQ replies, take over chats, add private notes, and organize customers with tags and labels. Install the chat widget using a theme app embed. Free includes 1 support agent; Premium includes 5, including the owner. Sticky Add to Cart remains available. Formerly Instant Buy. Bring storefront conversations into a shared support inbox. Set up keyword-based FAQ replies, take over chats, add private notes, and organize customers with tags and labels. Install the chat widget using a theme app embed. Free includes 1 support agent; Premium includes 5, including the owner. Sticky Add to Cart remains available. Formerly Instant Buy. more Live chat and a shared inbox for customer conversations Keyword-based FAQ bot with handoff to your support team Human takeover, private notes, and conversation status controls Customer profiles with tags and labels to organize follow-ups Theme app embeds for chat and the existing Sticky Add to Cart feature
Experience increased sales and revenues with our Smarter Announcement Bar to announce your brand off Make your brand noticeable and reveal your new arrivals & discounts with our Smarter Announcement Bar. Integrated with customization options, you can tailor the bar according to your needs in a font and color of your choice. Stay ahead of the curve with incorporation of animation and background images. The announcement bar is easy to implement and can be scheduled as per the announcement. You can use multiple bars to announce sales for different geo-locations and the target audience. Make your brand noticeable and reveal your new arrivals & discounts with our Smarter Announcement Bar. Integrated with customization options, you can tailor the bar according to your needs in a font and color of your choice. Stay ahead of the curve with incorporation of animation and background images. The announcement bar is easy to implement and can be scheduled as per the announcement. You can use multiple bars to announce sales for different geo-locations and the target audience. more Earn brand recognition and enhance your revenues with a sleek bar that showcase Use the visually appealing announcement bar at the top or bottom of the page wit Display it as a timer bar that creates a sense of urgency with a dynamic countdo Bar that can be customized with animations, colors, styles, rotation effects, an Announcement bar tailored based on geo-location, specific pages, date schedule,
Turn visitors into buyers with conversational AI that boosts CR and cuts customer support workload. Guide customers with Alcemi to find products instantly, get personalized recommendations, and receive 24/7 support. The AI handles product discovery, expert consultations, order inquiries, and FAQ responses automatically. Perfect for stores with large catalogs, complex products, international customers, or large support volume. Guide customers with Alcemi to find products instantly, get personalized recommendations, and receive 24/7 support. The AI handles product discovery, expert consultations, order inquiries, and FAQ responses automatically. Perfect for stores with large catalogs, complex products, international customers, or large support volume. more Zero setup required - works instantly with your existing products and store data 5 professional themes designed to match any store aesthetic seamlessly Supports 40+ languages automatically without translation setup needed Native Shopify user experience with quick live customer support Analytics dashboard to track conversation insights and revenue impact
Boost your revenue with AI-powered search - increased conversions and maximized average order value. Algolia AI Search understands shopper intent exceptionally well, providing relevant results even for complex keywords! This improves your site performance, significantly minimizes “no results”, and provides a seamless search experience for your shoppers. Save hours without having to create synonyms or manually assign categories. Impress shoppers with speed and relevance on any device. Algolia scales to handle large amounts of queries per month and is supported by data centers around the world. Algolia AI Search understands shopper intent exceptionally well, providing relevant results even for complex keywords! This improves your site performance, significantly minimizes “no results”, and provides a seamless search experience for your shoppers. Save hours without having to create synonyms or manually assign categories. Impress shoppers with speed and relevance on any device. Algolia scales to handle large amounts of queries per month and is supported by data centers around the world. more Get lightning-fast results that match exactly what the shopper wants Dynamically shape shopper experience by curating and personalizing results Maximize catalog exposure and drive upsell with AI recommendations Easily create and control campaigns with user-friendly merchandising tools Boost store performance by tracking high-revenue search terms
Enterprise-grade product recommendations + merchandising control: PDP, Cart, Checkout, A/B testing Algonomy brings the Product recommendation engine trusted by global retailers like Abercrombie & Fitch and Tiffany & Co. Get high-accuracy, margin-smart, and brand-safe product recommendations with full control over rules, availability, pricing, and assortment. Deliver suggestions that convert, protect margins, prevent shopper frustration, and help move the inventory that matters most. Designed for Shopify merchants who want enterprise-grade intelligence with Shopify-level simplicity. Algonomy brings the Product recommendation engine trusted by global retailers like Abercrombie & Fitch and Tiffany & Co. Get high-accuracy, margin-smart, and brand-safe product recommendations with full control over rules, availability, pricing, and assortment. Deliver suggestions that convert, protect margins, prevent shopper frustration, and help move the inventory that matters most. Designed for Shopify merchants who want enterprise-grade intelligence with Shopify-level simplicity. more Lift contribution margin/order Clear aging inventory with confidence Avoid OOS/size dead ends with availability‑smart ranking Increase attach rate and Average Order Value (AOV) Govern with do‑not‑recommend lists, price bands, and diversity caps
Boost sales and reduce cart abandonment with countdown timers, flash sale timers, limited-time offer Increases urgency and scarcity to encourage faster purchases and reduce cart abandonment. Display countdown timers, flash sale timers, limited-time offer banners, and promotional timers on Top/Bottom Bar, Product Page Card, Product List Image Bar, Product Page Image Bar, and Cart Page to maximize visibility throughout the buying journey. Perfect for promotions, flash sales, pre-orders, seasonal campaigns, and holiday events. Built-in analytics track traffic, clicks, conversions, and sales growth Increases urgency and scarcity to encourage faster purchases and reduce cart abandonment. Display countdown timers, flash sale timers, limited-time offer banners, and promotional timers on Top/Bottom Bar, Product Page Card, Product List Image Bar, Product Page Image Bar, and Cart Page to maximize visibility throughout the buying journey. Perfect for promotions, flash sales, pre-orders, seasonal campaigns, and holiday events. Built-in analytics track traffic, clicks, conversions, and sales growth more Place countdowns on product cards, image bar, cart—where urgency matters Control design fully to build trust and deliver a seamless brand experience Show personalized timers based on user behavior and the pages they browse Track clicks, impressions, conversions, and sales for easy performance analysis Automatically sync countdown timers with flash sales, restocks, and promo events
Protect your store with a GDPR cookie consent banner, content protection, and AI cart upsell tools. Amote helps merchants protect and optimize their store with GDPR compliance tools. Start with a GDPR legal cookie banner for cookie consent management, then add a Terms and Conditions checkbox before purchase. Content Protection can disable right click, copying and text selection, while Best Seller Protection hides top-performing product signals from competitors. Auto External Links keeps store navigation cleaner, and optional Cart Drawer or AI Cart Upsells can support a smoother checkout flow. Amote helps merchants protect and optimize their store with GDPR compliance tools. Start with a GDPR legal cookie banner for cookie consent management, then add a Terms and Conditions checkbox before purchase. Content Protection can disable right click, copying and text selection, while Best Seller Protection hides top-performing product signals from competitors. Auto External Links keeps store navigation cleaner, and optional Cart Drawer or AI Cart Upsells can support a smoother checkout flow. more Show GDPR legal cookie banners automatically to collect shopper cookie consent. Add a Terms and Conditions checkbox before customers complete their purchase. Enable content protection to disable right click, copying, and text selection. Hide best seller signals to protect top-performing products from competitors. Use Cart Drawer and AI Cart Upsells to create a faster, higher-value checkout.
Elevate your sales strategy and maximize revenue with tier discounts, bundles, upsells, and more Boost sales with ease! Effortlessly add exclusive discounts, upsells, and cross-sells to incentivize customers to buy more. Our fully customizable app seamlessly integrates with your store, eliminating costly development work. Take control of your store's growth potential with our all-in-one upsell and discounts app. Boost sales with ease! Effortlessly add exclusive discounts, upsells, and cross-sells to incentivize customers to buy more. Our fully customizable app seamlessly integrates with your store, eliminating costly development work. Take control of your store's growth potential with our all-in-one upsell and discounts app. more Incentivize Customers to buy more with Tier, Volume, & Combo discounts. Increase AOV with Frequently Bought Together: Manually setup or set to Autopilot Upsell and offer more value with Post Purchase Add-ons and Custom Services Increase your value proposition with Free Gifts and Buy X Get Y Discounts 24/7 Live Chat support and developer assistance when you need it
Maximise conversions with our always-on, sticky Add to Cart for seamless shopping experiences Enhance your product pages with a sticky "Add to Cart" button that stays visible at the bottom as customers scroll. This ensures easy access, improving the shopping experience and boosting conversions. Fully customize the button's design to match your store's branding. Setup is effortless—just enable the app embed, and it works with any theme. Simplify purchases and drive sales with this seamless feature! Enhance your product pages with a sticky "Add to Cart" button that stays visible at the bottom as customers scroll. This ensures easy access, improving the shopping experience and boosting conversions. Fully customize the button's design to match your store's branding. Setup is effortless—just enable the app embed, and it works with any theme. Simplify purchases and drive sales with this seamless feature! more Keep "Add to Cart" always visible for easy access on the product page. Simple one-click setup, compatible across all themes. Seamless integration on desktop and mobile for an excellent user experience. Personalize the design to match your store's unique style and identity. Custom code compatibility to integrate smoothly with any cart setup.
Post purchase upsell, product page upsells & checkout upsell — one app to boost AOV. AMP Post Purchase Upsell turns every order into a bigger order. Show a one-click post purchase upsell where buying intent is highest. Add product page upsells and pop-ups, and on Shopify Plus, add checkout upsells with a free-shipping progress bar. Use one-click add-ons, frequently bought together recommendations & cross-sell offers across the journey. Track incremental revenue and AOV in real time, and A/B test every offer! AMP Post Purchase Upsell turns every order into a bigger order. Show a one-click post purchase upsell where buying intent is highest. Add product page upsells and pop-ups, and on Shopify Plus, add checkout upsells with a free-shipping progress bar. Use one-click add-ons, frequently bought together recommendations & cross-sell offers across the journey. Track incremental revenue and AOV in real time, and A/B test every offer! more Create Post Purchase Upsells - recommended by AI or any flow/logic you'd like Upsell everywhere: Product page, Pop-ups, Thank You page Supercharge Checkout page with upsells and more (Shopify Plus Exclusive) Customize Thank You & Order Status page: Upsells, Surveys & more
Prep for Black Friday and boost AOV with slide cart upsells, free gifts & any design request! Trusted for premium-looking & fully on-brand design. We match aesthetics & increase AOV by adding progress bar, cart upsells, free gifts, BOGO (buy x get y), frequently bought together, discounts, & announcements with our slide cart. Works across languages and markets. Our cart drawer can be set up in minutes without any coding and includes a global 24/7 support team for any questions. Make your cart a revenue machine with every section designed for your brand. Works with the Sidekick agent too! Trusted for premium-looking & fully on-brand design. We match aesthetics & increase AOV by adding progress bar, cart upsells, free gifts, BOGO (buy x get y), frequently bought together, discounts, & announcements with our slide cart. Works across languages and markets. Our cart drawer can be set up in minutes without any coding and includes a global 24/7 support team for any questions. Make your cart a revenue machine with every section designed for your brand. Works with the Sidekick agent too! more Agency-Grade Themes: Built-in cart templates focused on various industries Cart Upsell & Cross Sell: Suggest frequently bought together items in your cart Rewards Progress Bar: Motivate customers to spend more by showing spending goals Free Gifts: Offer gifts when customers buy specific products, MOQ or cart value Sticky Cart Drawer: A floating cart that remains fixed, accessible from anywhere
Help Center HQ allows you to add a help center or FAQ page to your store in just a few minutes. HelpHQ allows users to get answers immediately from your own Frequently Asked Questions/Q&A page. An effective help center can answer massive amounts of questions before the customer has a chance to email you. HelpHQ will gather valuable satisfaction data on your help center articles. You will learn which question can be answered better, what's dissatisfying customers, what´s working, and so much more. HelpHQ allows users to get answers immediately from your own Frequently Asked Questions/Q&A page. An effective help center can answer massive amounts of questions before the customer has a chance to email you. HelpHQ will gather valuable satisfaction data on your help center articles. You will learn which question can be answered better, what's dissatisfying customers, what´s working, and so much more. more Insta-search: It will find answers instantly as the user types their question. Powerful editor: it makes writing help articles and a faq page a breeze. Customizable: to build a FAQ page that fits in with your store and brand. Seamless integration: manage your help center from the same familiar dashboard. Customer Feedback: collect user customer feedback through simple emojis.
Bundle & Upsell App to Boost Your Store Revenue With Amazing-looking Bundles. Boost your store revenue with the bundle & upsell app. Create any type of bundle or upsell scenario in your store like - bundle as product, bundle builder, upsell, cross-sell, BOGO, quantity breaks, volume discounts, and frequently bought together. Amplify's connected upsell tools are based on the industry-leading bundler engine to help you collect more revenue at key points in the shopper’s journey with personalized AI offers. Live chat support to help you with any questions. Boost your store revenue with the bundle & upsell app. Create any type of bundle or upsell scenario in your store like - bundle as product, bundle builder, upsell, cross-sell, BOGO, quantity breaks, volume discounts, and frequently bought together. Amplify's connected upsell tools are based on the industry-leading bundler engine to help you collect more revenue at key points in the shopper’s journey with personalized AI offers. Live chat support to help you with any questions. more Sell bundles as single products, offer bundle builders and quantity breaks Let customers build their own bundle with bundle builder scenarios Offer volume discounts on single products based on quantity breaks Upsell & cross-Sell with one-click bundle upsells, BOGO, kits, and mix & match Customize with no coding, no wait. Get live chat with proactive support
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About Custom CSS Apps for Shopify
Custom CSS 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 css 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 css solutions available in the Shopify App Store. Each has been selected based on its functionality, user ratings, and overall value for Shopify merchants.