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.
Custom CSS Shopify Apps
Discover the best Custom CSS apps for your Shopify store in 2026. Compare features, pricing, and reviews to find the perfect solution.
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View Best Custom CSS AppsBoost AOV with cart upsell, cross-sell, free gift with purchase, and AI-powered products infor block Amote makes upselling and cross-selling easy. Entice customers to buy more with multi-tiered rewards progress bar: free gift with purchase, free shipping, buy X get Y, discounts upon reaching spending goals. Display related products in the native cart drawer to trigger impulse purchases. Offer add-on services like shipping protection, gift wrap for higher cart value. Upgrade in cart page upsell, checkout upsell with trust badges, customer review quotes, sticky add to cart, scarcity timers & more Amote makes upselling and cross-selling easy. Entice customers to buy more with multi-tiered rewards progress bar: free gift with purchase, free shipping, buy X get Y, discounts upon reaching spending goals. Display related products in the native cart drawer to trigger impulse purchases. Offer add-on services like shipping protection, gift wrap for higher cart value. Upgrade in cart page upsell, checkout upsell with trust badges, customer review quotes, sticky add to cart, scarcity timers & more more Cart Drawer Upsells: frequently bought together, related product recommendations Progress Bar Upsell: free gift with purchase, free shipping, multi-tier rewards Add-ons: shipping protection, gift wrap, extended warranty, priority shipping Boost Conversions: cart page upsell, checkout upsell, upcart, fomo cart animator Better Shopping Experience: slide cart, sticky add to cart, AI product info
Boost AOV & conversion with slide cart drawer upsells, free gifts & custom brand design support! Increase your store's average order value by adding progress bars, cart upsells, free gifts, BOGO (buy x get y), frequently bought together, discounts, promotions and announcements with our slide cart. The sticky cart drawer looks great on any theme and reduces cart abandonment by making your cart accessible from anywhere on your site. Use our 10+ features and supercharge your cart to become a revenue machine with every section designed for your brand. Increase your store's average order value by adding progress bars, cart upsells, free gifts, BOGO (buy x get y), frequently bought together, discounts, promotions and announcements with our slide cart. The sticky cart drawer looks great on any theme and reduces cart abandonment by making your cart accessible from anywhere on your site. Use our 10+ features and supercharge your cart to become a revenue machine with every section designed for your brand. more 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 Discount Bar: Apply and Stack discount codes in the cart drawer directly 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
Powerful Slide Cart With Cart Upsell, Free Gifts, Rewards Bar & Post Purchase Upsell to Boost Sales Leverage a slide cart drawer, equipped with a powerful tiered rewards progress bar and post-purchase upsell scenarios. Encourage customers to add more products and receive rewards like free shipping, free gifts, and discounts. Tailor product recommendations with smart cart upsell rules to maximize every opportunity to optimize your AOV. Create an easy shopping experience and reduce cart abandonment by moving customers faster to checkout. Leverage a slide cart drawer, equipped with a powerful tiered rewards progress bar and post-purchase upsell scenarios. Encourage customers to add more products and receive rewards like free shipping, free gifts, and discounts. Tailor product recommendations with smart cart upsell rules to maximize every opportunity to optimize your AOV. Create an easy shopping experience and reduce cart abandonment by moving customers faster to checkout. more Slide Cart: Cart with tiered rewards - free shipping, free gift, and discounts Cart Upsell: Recommended products in-cart based on AI or custom rules Post Purchase Upsell: optimize AOV with one click upsell offers in post-checkout Advanced Cart Features: Shipping protection upsell, custom HTML, custom widgets Easy Customization: No coding, no wait. Get live chat superior support
The simplest app to display your IG posts and reels! Takes less than a minute to set up. If you're looking for a simple, set-and-forget app to show your Instagram posts on your Shopify store, look no further! This delightful app lets you add an Instagram gallery on your website in less than a minute, no coding required. If you're looking for a simple, set-and-forget app to show your Instagram posts on your Shopify store, look no further! This delightful app lets you add an Instagram gallery on your website in less than a minute, no coding required. more Takes less than a minute to set up Choose from 3 beautiful designs: grid, collage, and slider (carousel) Supports normal posts and reels Looks great on mobile and desktop Highly optimized widget that won't slow down your store
Improve your store design with beautiful photo collections created by ANG photo gallery. ANG Photo Gallery enables effortless and swift creation of stunning photo galleries. With a wide array of customization options at your disposal, such as layout, color schemes, visual effects, and page selection, you can tailor your collection to perfection. ANG photo gallery is modernly designed, highly compatible with a variety of screens and devices. You can also boost sales of products tagged with photos in your gallery. ANG Photo Gallery enables effortless and swift creation of stunning photo galleries. With a wide array of customization options at your disposal, such as layout, color schemes, visual effects, and page selection, you can tailor your collection to perfection. ANG photo gallery is modernly designed, highly compatible with a variety of screens and devices. You can also boost sales of products tagged with photos in your gallery. more Easily create galleries with unlimited photos. Optimized photos. Upload photos in bulk, customize effects, colors, layout. Make it easy for shoppers to buy products with products tagged on photos. Mobile-first responsive.
A simple solution to create mega menu, tab menu or tree menu for store. If your store doesn't have a good enough navigation bar or it doesn't suit your requirements, you can consider and use Extra menu for your store. With the Extra menu, you can easily create a component in seconds. Using built-in templates and easy-to-use customization tools, you can create menus with a beautiful and user-friendly interface. Includes: Mega menu, tab menu, tree menu, contact form, countdown timer, breadcrumbs,... If your store doesn't have a good enough navigation bar or it doesn't suit your requirements, you can consider and use Extra menu for your store. With the Extra menu, you can easily create a component in seconds. Using built-in templates and easy-to-use customization tools, you can create menus with a beautiful and user-friendly interface. Includes: Mega menu, tab menu, tree menu, contact form, countdown timer, breadcrumbs,... more Create mega menu, tab menu and tree menu (dropdown menu) by using template. Simple and fast customization. Vertical menu. Multi-language + Limit markets + Limit pages + breadcrumbs Mobile friendly.
The All-in-One Announcement Solution for Your Store! The All-in-One Announcement Solution for Your Store! With Annify, capturing your customers' attention has never been easier. Create eye-catching announcement bars to share promotions, updates, and important messages directly on your Shopify store. Annify is designed to be fast, flexible, and easy to customize for any type of store. The All-in-One Announcement Solution for Your Store! With Annify, capturing your customers' attention has never been easier. Create eye-catching announcement bars to share promotions, updates, and important messages directly on your Shopify store. Annify is designed to be fast, flexible, and easy to customize for any type of store. more Fixed bar stays visible while scrolling for consistent messaging. Marquee-style bar with scrolling text to capture customer attention. Sliding bar rotates multiple messages for seamless updates. Smooth animations enhance sliding and marquee announcement bars. Page & geo targeting: show announcements by page and visitor location
Helps users to compare two images of before and after with slider separation directly as Apps block Before - After & Comparison by Apps on Demand provides you option for adding the image for comparison for showing the before/after images for the products or services they provides. Directly shown as section in the customize which makes it a perfect fit for Shopify 2.0 themes. It fully customizable from theme editor and requires no coding skills. The app is ideal fit for any industry that want to show before and after images of their products or services that will eventually uplift sales. Before - After & Comparison by Apps on Demand provides you option for adding the image for comparison for showing the before/after images for the products or services they provides. Directly shown as section in the customize which makes it a perfect fit for Shopify 2.0 themes. It fully customizable from theme editor and requires no coding skills. The app is ideal fit for any industry that want to show before and after images of their products or services that will eventually uplift sales. more Add multiple sections with option of show either 1, 2 or 3 images in a row. Fully customizable settings. Desktop and Mobile Compatible. Compare two images
Add Button to External links - Amazon, Walmart, Ebay | Affiliate links, Any custom links AOD External Links Button will allow you to easily add external affiliate link buttons on product page. As you know customer always search for good price on another websites. In our app you can add affiliate links of your products from website like Amazon, Ebay, Jet, Aliexpress etc. so you do not loose your sales and users will see only your product on different platforms. You can add unique affiliate links for each product. We also provide an option to hide "Add to cart" button. AOD External Links Button will allow you to easily add external affiliate link buttons on product page. As you know customer always search for good price on another websites. In our app you can add affiliate links of your products from website like Amazon, Ebay, Jet, Aliexpress etc. so you do not loose your sales and users will see only your product on different platforms. You can add unique affiliate links for each product. We also provide an option to hide "Add to cart" button. more The app installation process is extremely easy & it does not require manual code Add External links buttons for Unlimited Products. Replace & Hide Add to Cart. Show External links button on product, collection page & home page products. Increase Sales by adding affiliate link buttons. Boost your buyer confidence. You can customize the button style according to your theme design.
Product Options override variants limit and can create multiple addons with custom price With Product Options you can create multiple options such as text, drop-down, radio, checkbox, date & time, swatches with custom price add-ons. This will help you to collect more important information of your products and will help you increase in sale. The app installation is very easy following creating product options and assigning them to either collections or products. Rely us for getting more product information from users through options for better selling of your products. With Product Options you can create multiple options such as text, drop-down, radio, checkbox, date & time, swatches with custom price add-ons. This will help you to collect more important information of your products and will help you increase in sale. The app installation is very easy following creating product options and assigning them to either collections or products. Rely us for getting more product information from users through options for better selling of your products. more One click install & no coding skills required / 2.0 Compatible Unlimited Variants Options | Swatches | Date & Time Dropdown | Checkboxes | Short Text | Long Text | Radio | File Upload Ajax Cart Compatibility with Shopify Discounts on Addon Priced Checkouts Mixed Cart with custom priced add-ons and normal product
Advanced product options: 22+ option types, add-ons, bulk edit, multi-step, advanced rules & more. Go beyond Shopify native product option limits. Create option sets to apply across products or add product-level options. Dynamically update product price based on the options the shopper selects. From swatches to file uploads & dimensional formula-based price calculator, build product options that fit any configuration. Build multi-step flows, add advanced rules like show/hide. Bulk edit to manage large catalogs fast. Bundle upsells as product add-ons to grow AOV. No-code setup. Go beyond Shopify native product option limits. Create option sets to apply across products or add product-level options. Dynamically update product price based on the options the shopper selects. From swatches to file uploads & dimensional formula-based price calculator, build product options that fit any configuration. Build multi-step flows, add advanced rules like show/hide. Bulk edit to manage large catalogs fast. Bundle upsells as product add-ons to grow AOV. No-code setup. more Unlimited product options & variant options: option sets + product-level options 22 option types: swatches, dropdown, buttons, text, range slider & file upload Dimensional price calculator: formula pricing by width / height / length Add-on products for upsells, bundles and cross-sells Conditional rules (show/hide) + multi-step flows, bulk add/edit & localization
Build personality tests, product quizzes, and trivia to engage shoppers and increase conversions. Appify helps merchants create unlimited quizzes without coding to boost sales and engagement. Build product recommendation quizzes that guide customers to perfect matches, personality tests that go viral on social media.Collect valuable customer data with customizable lead forms, use conditional logic for personalized results, and track performance with built-in analytics. Choose from 9 question types, mobile-responsive themes, and integrate with email marketing tools to grow your list. Appify helps merchants create unlimited quizzes without coding to boost sales and engagement. Build product recommendation quizzes that guide customers to perfect matches, personality tests that go viral on social media.Collect valuable customer data with customizable lead forms, use conditional logic for personalized results, and track performance with built-in analytics. Choose from 9 question types, mobile-responsive themes, and integrate with email marketing tools to grow your list. more Create engaging quizzes with 9 question types to boost customer interaction. Match quizzes to your store's look with customizable colors, fonts, and themes. Collect customer emails and sync to Mailchimp, Klaviyo, and other email tools. Track completion rates and customer behavior to optimize quiz performance. Shuffle questions and answers to keep quizzes fresh for returning customers.
Take booking for events, appointments, services on your calendar. Calendar Appointment Booking App. Setup "Book Now" on any product or service. Convert any product into a bookable service in 3 easy steps, just add the product to the app, assign team members, and then schedule availability. App will add a scheduling button on the product to let customers book appointments. Works like Calendly, to take booking on products. Schedule appointment booking seamlessly, whether in-person or online, with automated Zoom integration. Allow staff members to set up accounts and log in to the dashboard. Setup "Book Now" on any product or service. Convert any product into a bookable service in 3 easy steps, just add the product to the app, assign team members, and then schedule availability. App will add a scheduling button on the product to let customers book appointments. Works like Calendly, to take booking on products. Schedule appointment booking seamlessly, whether in-person or online, with automated Zoom integration. Allow staff members to set up accounts and log in to the dashboard. more Flexible Setup: Calendar Integrations, Custom Questions, Group Events & more Team Member Support: Add your staff as team members for taking multiple booking Add Google/Outlook calendars for 2 way sync. Connect Zoom for online meetings. Appointments cancellation & rescheduling flow without manual intervention. Deposits: Allow Customers to pay a deposit amount while booking the appointment.
Take bookings, appointments, events & service on your calendar. Booking app for any appointment. Appointo app adds a native scheduling popup on any service/product you sell on Shopify. Start selling services in your store within 2 min without any technical knowledge. Works like Calendly, but integrated into Shopify. You can sell in your physical location or online using automated zoom or google meet links. Ask custom questions to your customers also add multi-day on your site, for tours, hotel, Boat rental, car rental, etc. Booking app, appointment, appointment booking Appointo app adds a native scheduling popup on any service/product you sell on Shopify. Start selling services in your store within 2 min without any technical knowledge. Works like Calendly, but integrated into Shopify. You can sell in your physical location or online using automated zoom or google meet links. Ask custom questions to your customers also add multi-day on your site, for tours, hotel, Boat rental, car rental, etc. Booking app, appointment, appointment booking more Customer Booking Portal through which customers can manage their bookings Sends automated emails and text for reminders, confirmations, rescheduling, etc. Supports group appointments, Google, Outlook calendar and Zoom Integrations. Supports all themes and automatically translates to the store's language. Manage one-time and recurring booking subscriptions including payments
Appointment booking & calendar app for services, events & classes. Booking app & appointment app. This appointment app transforms any product into a bookable service or event in under 1 min! The Propel booking app adds a scheduling popup to product pages to take appointments & bookings for services, events, courses, reservations & workshops. Similar to Calendly, with a beautiful mobile-first design, Zoom & Google Calendar integration, SMS reminders, deposits, group appointments & more, the Propel appointment booking app will help you sell more bookings, stay organized & reduce no-shows. This appointment app transforms any product into a bookable service or event in under 1 min! The Propel booking app adds a scheduling popup to product pages to take appointments & bookings for services, events, courses, reservations & workshops. Similar to Calendly, with a beautiful mobile-first design, Zoom & Google Calendar integration, SMS reminders, deposits, group appointments & more, the Propel appointment booking app will help you sell more bookings, stay organized & reduce no-shows. more Use group appointments to offer classes, webinars, events & more. Reduce no-shows, ask for reviews and more with SMS and email notifications. Add custom questions to your booking form to gather the info you need. Easily take deposits and partial payments to secure bookings. Zoom integration auto creates meeting URLs. Integrates with Google Calendar.
Turn products into appointments. Set flexible time slots and manage bookings easily AptBook lets you accept appointments directly from your Shopify store in just 1 minute. Perfect for salons, spas, clinics, doctors, coaches, workshops, classes, and service-based businesses. Turn products into bookable services with flexible time slots, custom durations, buffer time, and holiday controls. Customers can book instantly from your homepage. Sync with Google Calendar and host video calls via Zoom or Agora. Setup in 3 simple steps and start accepting bookings today. AptBook lets you accept appointments directly from your Shopify store in just 1 minute. Perfect for salons, spas, clinics, doctors, coaches, workshops, classes, and service-based businesses. Turn products into bookable services with flexible time slots, custom durations, buffer time, and holiday controls. Customers can book instantly from your homepage. Sync with Google Calendar and host video calls via Zoom or Agora. Setup in 3 simple steps and start accepting bookings today. more Offer customers seamless booking from product page to checkout in seconds. Set working hours, breaks, holidays & full control over your availability. Add Zoom URL and Google Meet Link to Connect for online meetings Replace the "add to cart" button for a "book now" button on any product page Booking an Appointment: You schedule the video call by selecting a time slot.
Inform with clear delivery dates. Answer "When will it arrive?" and elevate trust. Try now! Merchants can enhance the shopping experience with AppRoom Estimated Delivery Day. This app allows stores to display EDD (Estimated Delivery Date) and ETA (Estimated Time of Arrival) on product pages. It provides accurate EOD (End of Day) estimates, setting clear delivery expectations. The result? Fewer customer inquiries and a stronger trust bond between merchant and shopper. Merchants can enhance the shopping experience with AppRoom Estimated Delivery Day. This app allows stores to display EDD (Estimated Delivery Date) and ETA (Estimated Time of Arrival) on product pages. It provides accurate EOD (End of Day) estimates, setting clear delivery expectations. The result? Fewer customer inquiries and a stronger trust bond between merchant and shopper. more One-click setup via Shopify Theme Editor: simple, no coding needed. "Get It By" countdown for urgency: adjust messages and colors. Control timer display: show/hide on specific days and omit weekends/holidays. Clear delivery info reduces support, boosts sales. Boost sales with urgent delivery timers for high-demand products.
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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.